— The light is still on in his room. Do you know ?— Maybe he has to study for a test.

题型：单选题题类：模拟题难易度：普通

— The light is still on in his room. Do you know ?
— Maybe he has to study for a test.

A、if he works hard B、who he is studying with C、what he is busy with D、when he will stop working

举一反三

-- No, I _________it last week.

—__________. I can't really tell ______________.

Can you understand {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}?

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