问题
______ worries me that my daughter plays with her cellphone for a long time every day.
A:It
B:What
C:This
D:That;
B:What
C:This
D:That;
正确答案是：
同类题型
There is no doubt that our educational systemleaves something __________
They got much ___ from those new books.
_______you and Mike brothers—–No, I_______his cousin.
I ___ _ my clothes when my father got home.
It’s already 10 o’clock. I wonder how itthat she was two hours late on such a short trip.