问题
选择题
I think he's been drinking, _______ I'm not completely sure.
A．if
B．though
C．because
D．while
答案
答案：B
题目分析：句意：我认为他一直在喝酒，虽然我不完全确定。If如果；though尽管，虽然；because因为；while在……期间。根据题意选B。
搜题请搜索小程序“爱下问搜题”
I think he's been drinking, _______ I'm not completely sure.
A．if
B．though
C．because
D．while
答案：B
题目分析：句意：我认为他一直在喝酒，虽然我不完全确定。If如果；though尽管，虽然；because因为；while在……期间。根据题意选B。