–Isn’t it a surprise that I happened to meet Francis Mathews at the Christmas Party last week?
--If my memory serves me correctly, you ____ each other for exactly two years.
| A．hadn’t seen | B．haven’t seen | C．didn’t see | D．don’t see |
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 |