It was ___ the chief engineer came _

考试题库2022-08-02 9

问题 It was _____ the chief engineer came _____ we began the experiment.A.not until; thatB.not until; thenC.until; thatD.until; when

选项 A.not until; that
B.not until; then
C.until; that
D.until; when

答案 A

解析句意：直到总工程师来了，我才开始做实验。it is not until...that为强调句型，意思是“直至某时才做某事”。

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