Social attention should be paid our earth from .
| A． to prevent; being polluted | B． to preventing; polluted |
| C． to prevent; polluting | D． to preventing; being polluted |
With all the magazine he needed ,he left the library.
| A．borrowing | B．borrowed | C．borrow | D．to borrow |
16. ---The farmer president was caught at last.
---Really? Where himself?
| A．had hidden | B．has he hidden | C．was he hidden | D．has he been hiding |
Turn off the tap please. The water .
| A．was wasted | B．wastes | C．is wasting | D．is wasted |
---I hope you enjoyed the film last night.
---How on earth do you know I went to a film? I you.
| A．won’t tell | B．didn’t | C．haven’t told | D．don’t tell |
As far as we know, Tom spends at least as much time watching TV as he .
| A．does writing | B．writes | C．writing | D．does to write |