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1. Gạch chân từ fewre thay bằng less
2. Gạch chân từ should thay bằng shouldn't
3. Gạch chân many thay bằng much
4. Gạch chân less thay bằng more
5. Gạch chân Hoa playing thay bằng Hoa is playing

Điền vào chỗ trống :
Scientists say life started in the ocean. However, humans aren’t natural swimmers. We (1) ___can____ swim as babies, but we forget and then we (2) ___must____ learn to swim again.
We (3) ___must not____ forget that our world is mainly water. So we (4) ___should____ all learn to swim. We (5) ___can____ try to stay away from water, but it is very difficult. The time always comes when we need to cross water.
We (6) ___ought to/should____ learn to swim when we are young. It is easier to learn then. Our parents (7) ___can/should____ help. They (8) ___should/must____ give us the opportunity to learn to swim.
1 - can 2 - must
3 - must not 4 - should
5 - can 6 - ought to/ should
7 - can/should 8 - should/ must

bài làm:
.1.......when............is the shop closed? -It's closed before 4:30
2.........How Often..........is the festivals held in your town? -Every 2 years
3...............When....are you going to France? -This summer.
4.......Whose............notebook is it? -It's mine.
1........When...........is the shop closed? -It's closed before 4:30
2.........How often.........is the festivals held in your town? -Every 2 years
3.........When..........are you going to France? -This summer.
4...........Whose........notebook is it? -It's mine.

chuyển cách câu sau thành thì hiện tại tiếp diễn=>hoàn thành
1, this is the first time he went abroad
=>he hasn't gone abroad before
2 she started drawing 1 month ago
=>she has drawn for 1 month
3, We began eating when it started to rain
=>we have eaten since it started to rain
4 The last time she met me was 5 years ago
=>She hasn't met me for 5 years
5, I haven't seen him for 2 days
=>It is 2 days since I last saw him
6, She started working here in 2013
=>She has worked here since 2013
7, I began living in Ho Chi Minh city when I was 8
=>I have lived in Ho Chi Minh city since I was 8
8, He has written to me since april
=>he started writing to me in april
9 Robert and Mary have been married for 10 years
=>Robert and Mary started being married 10 years ago
10, how long is it since you wrote to me?
=>how long have you written to me?
Bài làm
6, She started working here in 2013
=>She has worked here since 2013
7, I began living in Ho Chi Minh city when I was 8
=>I have lived in Ho Chi Minh city since I was 8
8, He has written to me since april
=>he started writing to me in april
9 Robert and Mary have been married for 10 years
=>Robert and Mary started being married 10 years ago
10, how long is it since you wrote to me?
=>how long have you written to me?
P/s tham khảo nha

Make questions for underlined words :
1. How does Mrs.Hang travel to Tokyo ?
Mrs.Hang travels to Tokyo by plane.
2. How about going skating ?
Great idea ! Going skatting is wonderful.
3. Who is she waiting for ?
She it waiting for her mother .
4. What does Huong drinking in the morning ?
Huong s drinking coffee in the morning.
5. How far is it from this bus stop to the supermarket ?
It is 200 meters from this bus stop to the supermarket.
unsafe
fish or tortoise