A survey has shown that 40% of those killed in traffic accidents ________ if they had been wearing seat belts.
| A．should have been saved |
| B．must have been saved |
| C．need have been saved |
| D．could have been saved |
I don’t know whether you happen ____ it, but I’m going to study in the U.S.A. this September.
A. to be heard B. to be hearing C. to hear D. to have heard
He looked around and caught a man _____ his hand into the pocket of a passenger.
| A．put | B．to be put | C．to put | D．putting |
Don’t leave the water ____ while you brush your teeth.
| A．run | B．running | C．being run | D．to run |
Having been ill in bed for nearly a month ,he had a hard time________ the exam.
| A．pass | B．to pass | C．passed | D．passing |
It is believed that if a book is________, it will surely________the reader.
| A．interested …interest | B．interesting …be interested |
| C．interested …be interesting | D．interesting…interest |