i _____ whether he will make good progress before long.A doubted _英语解答

i _____ whether he will make good progress before long.
A doubted B have no doubt C don't doubt D have a doubt
请问前面选择不可选择的原因是什么?

人气：188 ℃　时间：2020-04-02 22:53:25

解答

A 错,因为用了过去时.
B 错,因为have no doubt 后面必须用that 引导句子,而不能用whether.
C 错,理由同上.have no doubt = don't doubt.