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21 tháng 3 2018
1. He won a silver medal, but he (not/win) didn't win a gold medal.

2. I practise Art by (draw) drawing many painting.

3. Milk (usually/keep) is usually kept in the fridge.

4. The living standard (already/improve) has already been improved by the new policy.

5. Overpopulation (not/bring) doesn't bring much benefit to big cities.

6. Mrs.Cross (be) had been a teacher for twenty years before she became a head teacher.

20 tháng 3 2018

1. He won a silver medal, but he (not/win)........didn't win .........a gold medal.

2. I practise Art by (draw).......drawing .......many painting.

3. Milk (usually/keep).....is usually kept ..........in the fridge.

4. The living standard (already/improve).......has already been improved .......by the new policy.

5. Overpopulation (not/bring)..........is not brought ...........much benefit to big cities.

6. Mrs.Cross (be)......has been .............a teacher for twenty years before she became a head teacher.