—May I watch TV for another 15 minutes, Mum?—Oh, dear, if you _____.
.In that country, the rich ______ richer, the poor, poorer.
.The project requires more labor than ______ because it is extremely difficult.
.Not one in one hundred children exposed to the disease ______ likely to develop it.
Robert is said ______ abroad,but l don't know what country he studied in.
The purpose of new technologies is to make life easier,______it more difficult.