問題詳情

18. While David ______ online games, his mom suddenly walked in and made him shut down the computer.
(A) played
(B) has played
(C) is playing
(D) was playing

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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使用While的時候，一邊(或兩邊)一定★★ ...