问题
选择题
The park _________by the cleaners every two days.
A．is swept
B．was swept
C．has swept
D．will sweep
答案
答案：A
此题重点考查被动语态，every two days.是经常性的时间状语故用一般现在时态的被动语态。
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The park _________by the cleaners every two days.
A．is swept
B．was swept
C．has swept
D．will sweep
答案：A
此题重点考查被动语态，every two days.是经常性的时间状语故用一般现在时态的被动语态。