4.It was not until he had lost his health _ he got to know its value.
A.that
B.until
C.what
D.when
正确答案：A
解析：本句为强调句型 ‘It is/was … that …’，强调时间状语 ‘not until he had lost his health’。去掉 ‘It was … that’ 后，剩余部分 ‘he got to know its value not until he had lost his health’ 语法成立，故选 that。
7.Everybody thought they could win the game, but it turned out that they _ it.
A.lose
B.had lost
C.has lost
D.lost
正确答案：D
解析：‘turned out that…’ 后接宾语从句，时态需与主句一致（一般过去时），且 lose 发生在 ‘turned out’ 之前还是同时？此处为结果性事实陈述，非强调先后，用一般过去时 lost 即可。had lost 表‘过去的过去’，但无更早时间参照；has lost 为现在完成，与主句过去时冲突。
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