问题
It has been shown________exercising regularly is good both for one’s health and one’s confidence.[ ]
A:whether
B:when
C:that
D:what
B:when
C:that
D:what
正确答案是：
同类题型
What do you think of the film named Iron Man 3—I have no idea, because I ______ it yet.
Mr White ________ at 8:30 for the meeting, but he didn’t show up.[ ]
To tell you the truth, I think it is you______ MrBlack______
Don’t always stay inside the house. Go out and enjoy the fresh air. It will your health.