The student did his homework ______ his professor had assigned.A、whenB、asC、unt

游客2023-11-21  19

问题 The student did his homework ______ his professor had assigned.

选项 A、when
B、as
C、until
D、if

答案 B

解析 本句意思是这个学生按照教授布置的做好了家庭作业。
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