问题
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
正确答案是：
同类题型
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