题目内容
20.How many tests will Americans have to pass_______________they get their driving licenses?( )A. | until | B. | if | C. | as | D. | before |
分析 美国人要通过多少场考试才可以拿到驾照?
解答 答案:D until直到;if 如果;as因为;before之前.题干表达的是拿到驾照之前要通过多少考试.故选D.
点评 连词用来连接复合句.按类型可分为:从属连词,连接代词,连接副词.学习时要注意区分和掌握.
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