I ________ use a clock to wake me up because at six o’clock each morning the train comes by my house.
A. mustn’t B. needn’t C. shouldn’t D. couldn’t
The beautiful song ________ me of those happy old days we had spent together.
A. repeated B. remembered C. informed D. reminded
I really appreciate ________ to drive me home, but I’m afraid I have to finish my work first.
A. you to offer B. you offer C. your offering D. that you are offering
Having been married for over 10 years, the couple ____ finally because they quarreled a lot.
A. broke up B. broke down C. broke out D. broke in
I borrowed several books from the library, ________ are about English study.
A. two of them B. and two of which C. two of which D. two of what
Most of us value our time, but some of us treat it ________ it had no value 
at all.
A. even if B. as long as C. even so D. as though
