_____ hard and you’ll succeed sooner or later.
#59339
A
Study
B
To study
C
Studying
D
Studied
推荐题目
 If the green light isn’t on, ___________ a minute.
#59395
A
wait
B
waits
C
will wait
D
waiting
________ it is to go for a picnic on such a fine day!
#66012
A
What a fun
B
What fun
C
How fun
D
How a fun
__________ the window, please. It’s cold.
#59464
A
Not open
B
Don’t open
C
Don’t close
D
Not close
______ until the lights have turned to green. 
#66190
A
Wait
B
To wait
C
Waiting
D
Having waited