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EX2 Give the correct form of the verbs in bracket: simple past or past perfect:
1. John ..(live) in Paris for one year then his parents....... ..(come) to visit.
2. When we ....(come) to the stadium, the match .............(already, begin).
3. Mary before. not go) to the cinema with us yesterday evening. She .......... (see) it
4. When I was a child, my father often.... ..(take )me to the zoo.
5.They told me they .....(eat) such kind of food before.
6. They ...(go) home after they ..(finish)their work.
7. Bill.. ..(work) at the university for 40 years before he (retire)...
8. After my sister ...........(wash) her clothes, she(begin) to study.
9.He said that he ..(see) that man before.
10. He............(already, go) before I ...........(come)there.
1. John ..(live) in Paris for one year then his parents....... ..(come) to visit.
2. When we ....(come) to the stadium, the match .............(already, begin).
3. Mary before. not go) to the cinema with us yesterday evening. She .......... (see) it
4. When I was a child, my father often.... ..(take )me to the zoo.
5.They told me they .....(eat) such kind of food before.
6. They ...(go) home after they ..(finish)their work.
7. Bill.. ..(work) at the university for 40 years before he (retire)...
8. After my sister ...........(wash) her clothes, she(begin) to study.
9.He said that he ..(see) that man before.
10. He............(already, go) before I ...........(come)there.
Trả lời (2)
17:50 07/10/2021
IV. Choose the underlined word or phrase in each sentence that needs correcting : 1. Did you saw your friends when you went to HN last week? 2. I have already had breakfast, then I went to school. 3. When I were studying my lesson, the phone suddenly rang. 4. Since I begin school, I haven't had much spare time. 5. Before she became a film star, she has been a stand-up comedian.
Trả lời (1)
17:28 07/10/2021
Giúp với ạ
IV. Choose the underlined word or phrase in each sentence that needs correcting : 1. Did you saw your friends when you went to HN last week? 2. I have already had breakfast, then I went to school. 3. When I were studying my lesson, the phone suddenly rang. 4. Since I begin school, I haven't had much spare time. 5. Before she became a film star, she has been a stand-up comedian.
IV. Choose the underlined word or phrase in each sentence that needs correcting : 1. Did you saw your friends when you went to HN last week? 2. I have already had breakfast, then I went to school. 3. When I were studying my lesson, the phone suddenly rang. 4. Since I begin school, I haven't had much spare time. 5. Before she became a film star, she has been a stand-up comedian.
Trả lời (3)
17:17 07/10/2021
Hòa tan hoàn toàn 35,2 gam hỗn hợp Fe và CuO trong 200 gam dung dịch H2SO4 loãng dư thu được 4,48 lít khí ( điều kiện chuẩn)
a) tính % khối lượng mỗi chất trong hỗn hợp. b) tính C% dung dịch axit đã dùng. c) tính khối lượng các muối trong dung dịch A
Trả lời (2)
19:39 22/04/2021