(单选题)50: How could she keep you ____ believing that she was changing her mind? A: at B: on C: from D: off ...

(单选题)2: People working in the government should not ______ business affairs that might change their political judgment. A: engage in B: hope for C: choose between D: pick on ...

(单选题)40: The line was engaged and the operator asked if I’d like to ____. A: hang about B: hang back C: hang on D: hang out ...

(单选题)22: After Billy proved that he could ride a bicycle safely, his father ___ to him and bought him one. A: give off B: give in C: give out D: give back ...

(单选题)16: On my way home this evening, I happen to notice that an old man was nearly ran ____ by a speeding car. A: after B: about C: across D: over ...

(单选题)10: People working in the government should not ______ business affairs that might change their political judgment. A: engage in B: hope for C: choose between D: pick on ...

(单选题)4: I’ve just come ____ a beautiful poem in this book found in a secondhand bookshop. A: about B: across C: down D: out ...

(单选题)48: Most environmental problems exist because adequate measures for preventing them _____taken in the past. A: was not B: were not C: were not being D: being not ...

(单选题)46: I know he hasn't finished his work, but ____________, he is a very busy man. A: above all B: after all C: for all D: in all ...

(单选题)4: They have decided to ____________ another telephone line in their house. A: fit up B: fit in C: fit D: install ...