It's ___ they will be able to attend the meeting.A doubtful wheth_英语解答

It's ___ they will be able to attend the meeting.
A doubtful whether
B doubtful that
C no doubt whether
D in doubt if

人气：166 ℃　时间：2019-09-17 06:43:23

解答

A
带有不确定的意思（这里如果用whether是否）用doubful
反之用no doubt 如：There is no doubt that.