________ hard is the key to success.
#51086
A
To work
B
Work
C
Worked
D
Works
推荐题目
The retired couple enjoy__________ photos．They always go out with their cameras．
#49265
A
take
B
took
C
to take
D
taking
—Would you like camping with me? — I’d like to. But I’m busy my homework.
#48529
A
to go; to do
B
to go; doing
C
going; to do
D
going; going