Put the words in brackets in the correct form

II. Put the words in brackets in the correct form:
1. We saw the (improve) _________ in his studying. *


2. Listen!________they (sing)________in the classroom? *


3. (Read)__________is my leisure activity. *

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4. The article is ( write)_____________in English. *


5. When I was waiting for you, I (meet) ___________ a poor little girl. *


6. Cutting down trees causes a lot of (environment)_________ damage. *


7. I ( not meet)_____________ them in the street last Sunday. *


8. (Poison)____________chemicals will cause our plannet to become uninhabitable. *


9. He said that water (be)__________too contaminated to be used. *


10. The evacuation (complete)_________3 hours before the storm hit the village. *