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题型：单选题题类：常考题难易度：容易

—What's your sister doing now?
— She ______ her homework.

A、does B、will do C、is doing D、was doing

举一反三

Don't make any noise. The pandas over there.

Tomorrow is Dragon Boat Day. My mother and my grandma _________ a big meal for our family now.

The workers are at work now. (同义句转换）

The workers {#blank#}1{#/blank#} {#blank#}2{#/blank#}now.

I must leave now. Someone {#blank#}1{#/blank#}(wait)for me outside.

We are now {#blank#}1{#/blank#}(面临) a difficult problem.

彼得正领我们参观故宫博物院。

Peter is {#blank#}1{#/blank#} us {#blank#}2{#/blank#} the Palace Museum.

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