The key      the earth is to change the way      we live.
#96487
A
to save; /
B
to saving; /
C
to save; how
D
to saving; how
推荐题目
When the teacher came in, the students pretended _______ the text.
#93888
A
to read
B
to be reading
C
to have read
D
having read
I find it absolutely _______ that you didn’t like it.
#88527
A
astonished
B
astonishing
C
to astonish
D
being astonished
—I didn’t mean _______ her.—But talking like that means _______ her.
#97211
A
to hurt; hurting
B
hurting; hurting
C
to hurt; to hurt
D
hurting; to hurt