问题

What is itmade Carl determined to give up smoking?——-Watching how his father died in pain from lung cancer.

A:which
B:how
C:who
D:that

正确答案是：

同类题型

There is ________work to do and the work is _______ difficult .

You’d better___________on foot.

Jack can’t concentrate on his lessons recently.— Yes, that might ____ why he did so badly in the last test. [ ]

ld you like to come to dinner tonight—I’d like to, ___ I’m too busy.

Who is that girl sitting there — Well, her name is Jenny.