It was 10 o'clock __________ Jill arrived at the office, which made the boss annoyed.

2023-08-04

A.when
B.that
C.which
D.then

参考答案:A

考查状语从句。分析句子结构可知为时间状语从句,旬意为“直到10点Jill才到办公室,这使他的老板很生气”。故选A。

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