During the flood many students volunteered ________ through the weekend, giving out food and water for the victims.
After living in Paris for fifty years he returned to the small town __ he grew up as a child. A. which B. where C. that D, when
We decided not to climb the mountain because it was raining ___.
The number of people invited ___ fifty, but a number of them ___ absent for different reasons.
Many people agree that ___ knowledge of English is a must in ___ internationsl trade today.
Tom felt that he knew everybody’s business better than they knew it___.