题目内容
It _____ he _____ his office.
[ ]
A. was until the clock struck 12 when; didn’t leave
B. wasn’t until the clock struck 12 when; leave
C. wasn’t until the clock struck 12 that; leave
D. wasn’t until the clock struck 12 that; left
B. wasn’t until the clock struck 12 when; leave
C. wasn’t until the clock struck 12 that; leave
D. wasn’t until the clock struck 12 that; left
D
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