Look,so many passengers________with their smart phones on the underground.

admin2020-09-27  39

问题 Look,so many passengers________with their smart phones on the underground.

选项 A、played
B、will play
C、are playing
D、have played

答案C

解析 本题考查动词的时态,从look可以看出乘客们正在玩智能手机,用现在进行时态。
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