Not only his parents but also his brother         to the Summer Palace. They haven’t been back.
#41984
A
have been
B
have gone
C
has been
D
has gone
推荐题目
We will wait until everyone ________ back.
#36524
A
comes
B
come
C
will come
D
is coming
Each of the students       in the playground when the bell rang.
#39592
A
has fun
B
have fun
C
was having fun
D
were having fun
—Where         the dictionary? I can’t see it.—I         it right here a moment ago. But it’s gone.
#41985
A
did you put, have put
B
have you put, put
C
had you put, have put
D
were you putting, had put