单项选择 适中0.65 引用1 组卷81
________ the situation was so dangerous, scientists still worked hard to do research.
A.Though | B.Unless | C.Because | D.Since |
20-21九年级上·浙江温州·开学考试
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All things will get better ________ we pull together to fight against the virus(病毒).
A.because | B.since | C.if | D.unless |
________he exercises every day________he is very healthy.
A.Because; so | B.Because; through |
C.Because;/ | D.Though;/ |
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