读一读，找出正确的答语。
---______sit on the desk. ---OK. A.Please B . Don’t C. Not
---______ your jacket? --- Yes. A. Is this B. It is C. This is
Don’t listen ______ the boy. A.to B. at C. on
This is ______ ice cream . A.twoB. an C. a
It’s time ______ the cake . A.to B. for C. eat
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