单项选择 适中0.65 引用1 组卷343
There's little doubt ________ one day a cure will be found.
A.whether | B.if | C.what | D.that |
20-21高二下·黑龙江哈尔滨·阶段练习
类题推荐
When the earthquake happened, it seemed ________the world were coming to an end.
A.that | B.as |
C.if | D.as if |
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