Question

— 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

Answer 1

C

試題分析：句意： --他房間里的燈仍然亮著。你知道他在忙你什么嗎？---或許他必須為考試復習呢。此處考查賓語從句，根據答語“或許他必須為考試復習呢”，應該問他在做什么，應用what來提問。故選C。