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14 tháng 2 2019

Fill in the blank:

1.A conservationist is a person who takes an active __(4)part__ in the protection of the environment.

2. About 200 years ago _man(3)_ lived in great harmony with his environment because industry was not much developed.

3.The department needs three more computers in order to work __more(4)__ effectively.

4. I feel attracted to her _because(2)_ her voice is very sweet.

5. I sent a card to congratulate Hoa _on(2)_ turning the first prize in the English speaking contest.

6. We stayed a _little(3)_ longer because we didn't want to come back to that bad hotel.