Recent scientific studies indicate that eating healthy food and exercising regularly ____ help prevent many diseases.

A. might              B. can              C. shall               D. will      

B.

解析： 考查情態(tài)動(dòng)詞辨析。can 意為“會(huì)，能，能夠”，表示一種能力。例如：Even a small personal computer can store vast amounts of information. might“可能”，表示某事發(fā)生可能性很小，而shall和will不能表示能力。 
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