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题型：单选题题类：常考题难易度：普通

— I don't know .
— Because he has to look after his mother.

A、why he is leaving B、why is he leaving C、whether he will leave D、what is he leaving for

举一反三

Goldfish don't know _______ to them three seconds ago.

Does Paul work hard at school? (改为含有宾语从句的复合句)

Could you tell me{#blank#}1{#/blank#}Paul{#blank#}2{#/blank#}hard at school?

Could you tell me __________?

—Do you know this dictionary belongs to?

—Let me see. Oh, it's mine.

—Can you tell me ______?

—Sure. You can take the K2 bus.

After visiting the tea museum I've finally realized ____.

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