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(yǔ)氣。本句中動(dòng)詞suggest表示建議的時(shí)候，后面的賓語(yǔ)從句要使用虛擬語(yǔ)氣“（should）+動(dòng)詞原形”，當(dāng)suggest表示“說(shuō)明，暗示”的時(shí)候，使用陳述語(yǔ)氣。句義：專(zhuān)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(diǎn)：考察虛擬語(yǔ)氣

 

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