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题型：单选题题类：真题难易度：普通

— What about going to Jingpo Lake for a trip next weekend?　

— OK. But I'm not sure _____ it will rain.

A、whether B、where C、why

举一反三

—How long does it take to get to the airport?
—Forty minutes. But it's foggy today. I'm not sure the highway will closes soon. Let's set off earlier.

My sister asked me_____________.

—I want to know if Tom tomorrow.

—I will tell you if he .

Before you ask someone for help, find out he is the right person for your problem.

Does her aunt live in Canada? I am not sure. (改为含有宾语从句的复合句)

I am not sure {#blank#}1{#/blank#} her aunt {#blank#}2{#/blank#} in Canada.

I don't know if he ____ tomorrow. If he ____, I will call you.

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