说明
doubt whether/if/that
核心问题
I have no doubt ____ he will overcome all his difficulties. A. whether B. that C. if D. as to
我认为选A、B或C都是正确的。不知对否？
词典解答
此题只能选 B, 见 but that (doubt but that)。
doubt ¹
doubt whether/if/that
doubt whether/if/that
doubt whether/if/that
I have no doubt ____ he will overcome all his difficulties. A. whether B. that C. if D. as to
我认为选A、B或C都是正确的。不知对否？
此题只能选 B, 见 but that (doubt but that)。