问题
选择题
The problem is__________he has enough time.
A．if
B．whether
C．/
D．that
答案
B
whether引导表语从句,而不用if。
搜题请搜索小程序“爱下问搜题”
The problem is__________he has enough time.
A．if
B．whether
C．/
D．that
B
whether引导表语从句,而不用if。