(单选题)28: It was last night ___ I see the comet. A: the time B: when C: that D: which ...

(单选题)22: He says he will tell ________ wants to know. A: whatever B: whoever C: whichever D: who ...

(单选题)16: It ______ last night, for the ground is wet. A: must rain B: must be going to rain C: must have rained D: ought to rain ...

(单选题)10: I ________ to him that I should come. A: justified B: evaluated C: indicated D: reckoned ...

(单选题)38: Mary ____________her classmates has learned how to deal with the complicated problem. A: and B: and also C: as well as D: except ...

(单选题)32: Would you tell me ________? A: where is the post office B: where stands the post office C: where the post office is D: where stood the post office ...

(单选题)26: Physicists from all over the world came to the U.S. to ______ the hundredth anniversary of Einstein’s birth. A: congratulate B: celebrate C: decorate D: participate ...

(单选题)20: My trousers ______ when I tried to jump over the fence. A: cracked B: split C: broke D: burst ...

(单选题)14: Fresh vegetables were ______during the World War II. A: lack B: scarce C: little D: sparse ...

(单选题)8: It was several minutes before I was ____________ of what was happening. A: know B: realize C: wear D: aware ...