问题:
Doing morning exercises ________ our health.
A.are good
B.is good for
C.are good for
D.is good with
Doing morning exercises ________ our health.
A.are good
B.is good for
C.are good for
D.is good with
A.are good
B.is good for
C.are good for
D.is good with
参考答案: