John was cleaning the window and Mary was watching TV.A.at the meantimeB.whenC.m
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John was cleaning the window and Mary was watching TV.
| A.at the meantime | B.when | C.meanwhile | D.while |
试题答案
C
解析

John was cleaning the window and Mary was watching TV.
| A.at the meantime | B.when | C.meanwhile | D.while |
C
解析