It must be windy last night，_______there are so many leaves on the street．（ ）
| A． |
while |
B． |
or |
C． |
for |
D． |
because |
What do you think of the boy？
He is ______ honest student today and ______ useful man tomorrow． （ ）
A．a； anB．an； aC．an； anD．a； a
Would you mind going to the park with us this Sunday？
_____．I haven't been outdoors these days．I can't wait．（ ）
A．Sorry，I can'tB．Sure，I'd love to
C．Certainly notD．My pleasure
The light in his office is still on．I wonder _______．
Maybe at midnight again．（ ）
A．if will he stop working
B．if he will stop working
C．when will he stop working
D．when he will stop working
Yesterday，Mr．Green went to his hometown and visited the old house ____ he was born in．（ ）
A．whichB．whereC．whatD．it
Oh，my God!I have ______ five pounds．
Don't worry．It's normal for a growing teenage girl．（ ）
A．put upB．put offC．put onD．put down