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. ------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
C
考查时态。“不要把垃圾扔在地上。”“噢,非常对不起。我没看到那个垃圾箱。”答语指的是“刚才”没看到垃圾箱,应该用过去时。故选C。
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