The teacher suggested the dictionary ___________ at once.
A. be referred to be bought B. be referred to being bought
C. referred to be bought D. referred to being bought
There was a teapot shaped like a duck, out of ______ mouth the tea was supposed to come.
A. whose B. which C. its D. that
A Du’s unique voice ___________ especially to young people.
A. attracts B. draws C. catches D. appeals
________, I think, and the problem could be settled.
A. So long as you keep up your spirits B. A bit more effort
C. If you doubt your efforts D. Making great efforts
My careless friend Bob received a ticket for speeding. He ____ have driven so fast.
A. can’t B. wouldn’t C. mustn’t D. shouldn’t
The flu is believed ____by viruses that like to reproduce in the cells inside the human nose and throat.
A. causing B. being caused C. to be caused D. to have caused