解释几道单选题！！

2 Let's have a walk_the park on Center Avenue.
A through B pass C cross D across
3 Turn right at the first crossing, and you can't_the railway station.
A find B see C watch D miss
4 How are you getting_your study?
A at B in C along D to
5.I'll give you_with the dishes.
A a hand B hand C hands D the hand
7.There is _"u"and _"s"in the word "bus"
A an, an B a ,a C a,an D an, a
答案：A D C A C

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