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问题: 南通高考一模单选

21.—That’s a big building going up, isn’t it?
— this construction job?
A. Were you just watching B. Did you just watch
C. Have you just watched D. Didn’t you just watch

为什么选a 如何解释?
35. You never get over being a child, ______ you have a mother to go to.
A. as far as B. unless C. so long as D. although
答案是c 为什么
27.--- When did he leave the classroom?
--- He left _____ you turned back to write on the blackboard.
A. the minute B. the time C. until D. before
答案是a 请问 the time 有没有 一....就 的意思?

解答:

第一题是问:你刚才一直在看施工吗?第二题so long as 是“只有或当。。。时”的意思。第三题 the time 没有此意,the minute , the moment 同义