xả điểm zui thôi:

Cho `(O;3)` , `OM = 6` Cm. Kẻ hai tiếp tuyến `MA, MB` `(A,B` là các tiếp điểm`).`Tia đối `OM` cắt đường tròn O tại K sao cho O nằm giữa M và K. `a)` Chứng minh tứ giác `OBMA` nội tiếp. `b)` Chứng minh `KAMB` là hình thoi.

`->` nhớ  ko spam , giải đúng đề bài yêu cầu 

15.They had to keep the vegatable int he fridge.

--->

16.The strom has destroyed the house last night.

--->

17.They were preparing the meal when i saw them.

--->

18.They have nerver eaten this kind of food.

--->

19.Her mother makes her go to bed early.

--->

20. She sent the letter to them.

--->

21.They use English in the country.

--->

22.How long have you found the answer?

--->

23.When did you answer their question ?

---> 

24.You must present your topic today.

--->

25.I make some coffee for my husband everyday.

--->

đoạn thơ nghe thầy đọc thơ đã đánh thức trong em tình cảm gì trình bày 3-5 câu

put the verbs in brackets in the present simple tense

1. She ........ from England. A. come B. comes C. don't come D. goes

2. ......... she .................. French? A. Do/ speaks B. Does/ speaks C. Does/ speak D.

3. She........ from America . A. don't comes B. doesn't come C. doesn't comes D. doesn comes

4. I......... a bath now. Wait mea minute. A. have B. am have C. am having D. is having

5. He......... a glass of lemonade beforen breakfast . A. is B. have C. has D. does

6. ....... he ........... three children. A. Does/ have B. Does/ has C. do/have D. Is/ have

chứng minh công thức diện tích tam giác thường S = 1/2 * a * h