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题型：单选题题类：模拟题难易度：普通

天津市河西区2019届高三下学期英语第一次模拟考试试卷

The scientist does not study nature ________ it is useful to do so. He studies it because he takes pleasure in it.

A、until B、because C、though D、unless

举一反三

Tell your friend not to take the pills _______ he may have health problems in the future, _______ it is too late.

— May I go and play with Dick this afternoon, Mum?

—No, you can't go out _____ your work is being done.

You can't use the computer now, ________ the upgrade of the system is under way.

He was late this morning. That was {#blank#}1{#/blank#} there was a lot of traffic on the road.

既然你掌握了这些技术，那你为实现你的梦想做好了准备。（now that）

{#blank#}1{#/blank#}, you are ready to make your dream come true.

我们本来不需要打的的，那家旅馆其实非常近。（fact)

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