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题型：单选题题类：模拟题难易度：普通

The volunteers a lot of help to the community for nearly ten years.

A、offered B、are offering C、will offer D、have offered

举一反三

My sister _______ the Youth League for more than two years.

I ____ 30 pages of the book so far, but I hope to finish it by next week.

John has studied Chinese in this school {#blank#}1{#/blank#} the year of 2015. (填介词)

I've been looking forward to {#blank#}1{#/blank#}(open) a soup kitchen for many years.

They have already been to Qingdao many times. (用I know改写为含有宾语从句的复合句)

I know {#blank#}1{#/blank#} they {#blank#}2{#/blank#} already been to Qingdao many times.

got, haven't, we, apples, any ( . )

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