Yuan Longping makes ____ possible to produce more crops in the same fields with this special strain of rice 

Stop talking. I have __________ to tell you.

I tried several jackets on, but         of them looked good on me.

— Did you call on any of your old friends when you returned to your hometown ?—______ of  them . They were all very busy .

I would appreciate         if you could look after my pet while I am away.