Experts suggest that teenagers _____ at least 30 minutes exercising, five times a week.

A. have spent B. should spend

C. will spend D. would spend

 

B

【解析】

試題分析：考查虛擬語氣。本句中動詞suggest表示建議的時候，后面的賓語從句要使用虛擬語氣“（should）+動詞原形”，當suggest表示“說明，暗示”的時候，使用陳述語氣。句義：專家建議，年輕人一周鍛煉5次，每次至少30分鐘。故B正確。

考點：考察虛擬語氣

 

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