黑龙江省双鸭山一中2011届高三第四次模拟考试（英语）
21. ---may i put my luggage on the seat beside you, sir? ---_______.
a. with pleasure b. go ahead c. never mind d. take it easy
22. mr．smith ___ _ these days．i think he should take a holiday before he burns out．
a. has been overworking b. overworked
c. had overworked d. was overworking
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