she is in doubt ___ he will come?中间填充A that B.whether

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B
doubt 意为“怀疑”,前有否定词时,后面的从句用that引导,没有否定词时,后面的从句用whether （后是宾语从句时也可以用if）来引导.
本题中doubt是名词,前没有否定词,后面是同位语从句,故用whether（不能换为if,因为if不能用来引导同位语从句）
句意：她怀疑他是否会来.

she is in doubt ___ he will come?中间填充A that B.whether It is ________(doubt) whether he will come. There is no doubt that he will come. I am not ___ whether she will come here .A、happy B、sad C、sur There was some doubt about whether he will come. Whether she will come or not is still a question.Whether当什么成 Whether she will come or not is still a question. Whether当什么英语句子改错（一处）It is no doubt that he will come there is no doubt that he will come to help us That is __ he wants to be a doctor in the future.A whether B i do not doubt（）he will come 添whether 还是if What do you think ___ in ten years?A will she is B will be s