there's no doubt thatwhether区分 老师讲的是that用在否定和疑问中,whether用在肯定句中。 例如:We have no doubt that you will succeed.我们毫不怀疑你会成功。 We have no doubt that you will succeed.我们毫不怀疑你会成功。 可为什么这句话中要用否定呢??
老师说的是错的,that用在肯定句中,而weather用在否定句中,翻译一下就清楚了:We have no doubt that you will succeed.我们毫不怀疑你会成功。 We have no doubt weather he will come tonight.我们不确定他是否会来。