(单选题)28: The airplane took off soon. It was like being on an old train ( ) from side to side and going faster and faster. A: surrounding B: foregoing C: swaying D: frowning ...

(单选题)16: One of the main reasons for air pollution is that many cars _______ smoke into the atmosphere. A: gather B: hire C: discharge D: escape ...

(单选题)10: A new theory ( ) before it can be put into practice. A: must be tested B: be tested C: can be tested D: to be tested ...

(单选题)40: ______ you eat the correct foods ______ be able to keep fit and stay healthy. A: Only if; will you B: Only if; you will C: Unless; will you D: Unless;you will ...

(单选题)24: The manager spoke highly of such ______ as loyalty, courage and truthfulness shown by his employees. A: virtue B: features C: properties D: characteristics ...

(单选题)18: John seems a nice person, _______ I don't trust him. A: Even though B: Even so C: Therefore D: Though ...

(单选题)44: Jim has not ( ) up for a whole day. I’m afraid he caught a bad cold in yesterday’s heavy rain. A: got B: put C: laid D: turned ...

(单选题)24: The president explained that the purpose of taxation was to ________ government spending. A: finance B: expand C: enlarge D: budget ...

(单选题)44: It was very kind of you to do the washing-up, but you __________ it. A: mustn’t have done B: wouldn’t have done C: mightn’t have done D: didn’t have to do ...

(单选题)38: It is a _______ truth that man is the only animal that has the power to speak and reason. A: worthy B: virtual C: universal D: indefinite ...