_______ good for our health.
#43570
A
Do exercise is
B
Doing exercise is
C
Do exercises are
D
Doing exercises are
推荐题目
Great Expectations ______ my favorite book, which ______ by Charles Dickens, and ______ as classic literature nowadays.
#86034
A
is; was written; is seen
B
are; are written; are seen
C
is; had been written; is seen
D
are; were written; is being seen
