单选题
It was not until he had arrived his office _____ remembered he had left his key at home无
A、
when he
B、
he
C、
and he
D、
that he
【正确答案】
D
【答案解析】
句意： 直到他到了办公室才记起他把钥匙落在家了。 该句套用了强调句型it is/was…that…。 因此， 本题的正确答案为D。
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