选择合适的单词填空。
1. ______________ (Are, Do) you have a bicycle?
2. Turn left ______________ (at, in) the traffic lights.
3. Can you help ______________ (I, me)?
4. Let's ______________ (go, going) to the park.
5. There are many department stores ______________ (in, on) the city.

【考点】助动词,人称代词,介词,祈使句

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