(单选题)7: As a party member, one should try to       his duty. A: fulfill B: avoid C: do D: finish ...

(单选题)1: The experiment involves _____ on some mice. A: to operating B: operating C: to be operating D: in operating ...

(单选题)29: I _______ to bed until my grandma came back home. A: didn't go B: went C: had gone D: have gone ...

(单选题)23: He's worked here _______ 4 o'clock this afternoon. A: for B: at C: since D: about ...

(单选题)17: The teacher required that all the assignments _____finished before this weekend. A: would be B: were C: be D: are to ...

(单选题)11: -- Is Mr Smith really very ill? --________. He's in hospital. A: I don't think so B: No, he isn't C:  I hope so D: I'm afraid so ...

33:      Why do you think people who live in some hot countries eat very spicy(辛辣的)food? Is it because the spices make the food taste better? Is it just because their parents and grandparents and great-grandparents li...

(单选题)27:  My friend, Tom, kept me _______ for an hour yesterday.　 A: to wait B: waited C: waiting D: wait ...

(单选题)15: They worked hard to _____their small business into a large one. A: transform B: transition C: transit D: transport ...

(单选题)9: It may rain tomorrow, but we are going home_____. A: however  B: in any case C: still  D: no matter ...