問題詳情

17.Cellphones and smartphones 　　　 during the test. If you use them, you will get a goose egg on the test.
(A) should turn off
(B) turned off
(C) being turned off
(D) should be turned off

參考答案

答案：D
難度：計算中-1
書單：沒有書單，新增

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