She ought to make a shift now; she is in a bad mood because she ______ in the du

游客2023-11-15 52

问题 She ought to make a shift now; she is in a bad mood because she ______ in the dull work too long.

选项 A、had engaged
B、is engaging
C、has been engaging
D、engaged

答案 C

解析

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Allthehardtasks______becauseoftheirjointeffort,theydecidetogoonholi