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题型：单选题题类：模拟题难易度：普通

—May I go swimming this afternoon?
— I'm afraid not _______ you have finished your homework.

A、if B、unless C、because D、but

举一反三

I don't eat junk food,____ I like junk food a lot.

- Tom, you look tired this morning. What's wrong?

- I was busy and I didn't go to bed _________ 12 o'clock last night

Jenny didn't go to bed her mother came home last night.

They will lose the game ________ they try their best.

Jenny was advised _________ the answer on her own _________ she was only six years old.

—Kate, what were your parents doing at 8:00 last night?

—My mom was watching TV. my dad was reading newspapers.

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