______ until the lights have turned to green. 
#66190
A
Wait
B
To wait
C
Waiting
D
Having waited
推荐题目
—Could you please tell me how to get on well with my schoolmates?—________
#59378
A
Try to be confident and work hard.
B
Be helpful and friendly.
C
Choose the white dress. You look nice in white.
D
You should have a lot of money.
—Don’t forget to close the door after school.— ________.
#59412
A
OK, I won’t
B
OK, I will.
C
Yes, I do.
D
No, I don’t.
_________, I think, and the problems would be settled.
#66166
A
If you double your efforts
B
Making more efforts
C
So long as you don’t lose heart
D
A bit more effort
____________ make so much noise. The students are taking an exam.
#59433
A
Isn't
B
Doesn’t
C
Don’t
D
Haven’t
______ it is to have a picnic in the hills on such a nice day!
#66098
A
What a fun
B
How fun
C
What fun
D
How a fun