---Don't put the waste on the ground. ---Oh, I'm very sorry. I the dustbin there. A．don't seeB．isn't seeingC．didn't seeD．haven't seen 题目和参考答案——青夏教育精英家教网—

---Don't put the waste on the ground.
---Oh, I'm very sorry. I ________ the dustbin（垃圾箱） there.

A．don't see

B．isn't seeing

C．didn't see

D．haven't seen

试题分析：考查时态：句意：--别把垃圾扔在地上。--哦，对不起，我没看见这里的垃圾箱。说明刚刚没看见垃圾箱，用一般过去时。选C。
点评：这道题的时态没有具体的时间，要根据上下文把隐含的时间找出来，做题就简单了。

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