问题
31．The fact that smoking is harmful to health is____most smokers are quite aware of
A:what
B:which
C:where
D:That
B:which
C:where
D:That
正确答案是：
同类题型
Yesterday _______8-year-old boy fell into the river._________ boy was saved by _______policeman.
I have __ ___ decided when to leave, but my sister hasn’t decided__ ___.
When ______CAAC flight 92 _______–Just a minute and I’ll check the timetable.
He is_________ at Chinese. He can speak Chinese very________.