Tan Lily-
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8. If you don’t eat/ won’t eat fruit, you get/ will get a cold.
VIII: Fill in the gaps with the correct verb tense of the verbs in brackets. Make sure you the sentence is a first type conditional sentence.
1. If I __________________ (not /have) lunch, I __________________ (be) hungry.
2. If he ________________ (not /be) at work, he __________________ (be) at home then.
3. If I ________________ (not/work), I __________________ (go) to a disco.
4. If Oanh _____________ (not/ be) thirsty, she _______________ (not/drink) any fizzy mineral water.
5. If she ________________ (not/ get) tired, I ________________ ( invite) her to our party.
6. If they _______________________ (not/ communicate), they _________________ (not /have) any jobs.
7. If my daughter ______________ (not/ do) the washing up, I _____________ (have to) do it instead of her.
8. I ________________ (not /tell) anybody about it if you ________________ (not/ want).
9. I am sure she ________________ (to do) it if you ________________ (to ask) her.
10. They ________________ (come) if she __________________ (invite) them.
11. He ______________ ( write) a letter to her if she _______________ (write) first.
12. I ________________ (go) there if you ________________ (go) with me.
13. Max ________________ ( pass) the exam if he ________________ (study) hard.
14. If he ____________ (not / be) at home, I ________________ ( visit) his sister then.
15. If she ________________ (not /walk) every day, she ________________ (not / be) healthy enough.
IX. Begin the sentences below with unless. Make any necessary changes.
1. If they don’t practise a lot, they will lose the game.
Unless ___________________________________________________.
2. I’ll miss the train if I don’t go now.
_________________________________________________________.
3. If she doesn’t answer the phone, leave her a message.
_________________________________________________________.
4. If you don’t pay the bill, I’ll call the police.
_________________________________________________________.
5. If he doesn’t work hard, he won’t pass the examination.
_________________________________________________________.
VII: Complete the sentences by putting the verbs into the negative form of Past Simple.
1. The film wasn’t very good, I ______________ it so much. (enjoy)
2. I knew Sarah was busy, so I ______________ her. (disturb)
3. The bed was uncomfortable. I _____________ well. (sleep)
4. They weren’t hungry, so they ___________ anything. (eat)
5. We went to Kate’s house but she ________ at home. (be)
6. The hotel wasn’t so expensive. It ____________ very much. (cost)
7. I was in a hurry, so I ___________ time to phone you. (have)
VIII. Use the Past form of the verbs:
1- I (be).......................................a student 2 years ago.
2- He (be).................................. a doctor two years ago.
3- They (be)................................. farmers last year.
4- Lan and Ba (be) .........................nurses last year.
5- It (be not)............................ cold yesterday.
6- She (be not)........................a pupipl last week.
7- This hat (be not) .........................new yesterday.
8- My parents (be not) .......................teacchers two years ago.
9- He (be not) ..........................a mechanic last Monday.
10- (Be)................... he an engineer yesterday. No , he (be not).....................
11- (Be) .................It hot last week?
12- The windows (be) ....................open last Monday.
13- (Be)................. you a teacher two years ago? Yes , I (be).................
14- Where (be) ....................Nam from yesterday?
15- Why (be) ............................he unhappy last Tuesday?
16 - I (remember)........................ your trip to Nha Trang two years ago.
17 - Ba (wear)............................. the cap all day yesterday.
18 - I (eat) ..........................a lot of fish yesterday.
19 - Her aunt (take)................................... her to see Cham Temple last year.
20 - Tuan (have).............................. a new bike yesterday.
21 - She (not buy).................................. a new ruler yesterday?
22 - He (not talk)................................. with his parents about his vacation in Da Lat last year.
23 - They (not come).................................. school yesterday?
24 - The windows (not close)............................ yesterday?
25 - We (not return) ......................................at home at 7 pm last Monday.
26 - She (not eat ) .............................................fish and crab yesterday.
27 - Lan (not go )................................. Ho Chi Minh city two years ago.
28 - My parents (not take).................................to Vung Tau last week.
29 - We (not have)......................................a lot of friends in Ha Noi.
30 - Lan and Hoa (be).................................... your school two years ago?
Cho tam giác ABC vuông tại A có AB < AC . Kẻ đường phân giác BD của góc ABC ( D thuộc AC ) . Kẻ DM vuông góc với BC tại M . Chứng minh :
a, Tam giác DAB = Tam giác DMB
b, Chứng minh AD < DC
c, Gọi K là giao điểm của đường thẳng DM và đường thẳng AB , đường thẳng BD cắt KC tại N . Chứng minh BN vuông góc với KC va tam giác KDC cân tại B
