______ you have done things like that before doesn’t matter.
A. That
B. Whether
C. What
D. If
查看答案
Now there is a danger ______ the area pollution kills all the plants here.
A. if
B. whether
C. /
D. that
Father made a promise ______ he was free he would take us to the Great Wall.
A. that
B. if
C. that if
D. whether
The reason why she was late for work is _____ her bike was broken.
A. why
B. because
C. that
D. because of
______ made his father very excited
A. Whom she was chosen
B. That he was chosen
C. Because she was chosen
D. Why she was chosen
微信支付 
支付宝支付