Some “healthy” habits such as shower every day and sitting on the loo be bad for you.A.

问题补充：

Some “healthy” habits, such as shower every day and sitting on the loo, be bad for you.

A. can

B. should

C. must

D. shall

答案：

(答案→)A. can

B. should

C. must

D. shall

解析：考查情态动词。Can 可能，should应当，竟然 must必须 shall将会

句意为，一些健康的习惯，比如每天洗澡和坐在马桶上，可能会对你有害。Can表示理论上的可能性