—How long do you think it is ________ he arrived here?    —No more than half a year, I believe.    
#104908
A
when
B
that
C
before
D
since
推荐题目
Unless the police can prove to the court that Ted has committed robbery,he______.
#104367
A
will not find guilty
B
will not be found guilty
C
will have found guilty
D
will not have found guilty
—Have you got your exam papers? —Not yet. I guess they _____ at this moment. 
#103131
A
are being graded
B
are grading
C
have graded
D
have been graded
I noticed that my grandmother was very upset when I told her about the accident,so I wished I  it to her.
#103954
A
did not mention
B
have not mentioned
C
do not mention
D
had not mentioned