After ______ seemed an endless wait, it was his turn to go into the doctor’s off

游客2024-01-15  18

问题 After ______ seemed an endless wait, it was his turn to go into the doctor’s office.

选项 A、this
B、that
C、which
D、what

答案 D

解析 after连词,在句中充当引导词,引导的是时间状语从句。what在从句中作主语。
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