first
second
third
第1题:
It is the third time that I ______ here.
A. was
B. am
C. have been
D. had been
第2题:
Had I known about this computer program, a huge amount of time and energy .
A.would have been saved
B.had been saved
C.will be saved
D.was saved
第3题:
A.I had been
B.I am coming
C.I was
D.I have been
第4题:
A.had been
B.were
C.was
D.would be
第5题:
By the time you arrive, I ______ working for two hours
A. will be
B. can
C. will have been
D. have been
第6题:
39.— _________ have you been learning English? .
—I have been learning English for six years.
A. How long
B. How often
C. How far
D. What time
第7题:
3. —Come and join us,Jimmy !
—I-m sorry,but I-m really busy now.lf I _______ time,l would certainly go.
A. will have
B. have had
C. had
D. have
第8题:
A.No way
B.I don’t agree
C.Not really
D.I couldn’t agree more
第9题:
I ()have been here, but I()not find the time.
A. could; could
B. might; could
C. should; could
D. should; would
第10题:
A、to spend
B、I spending
C、spending
D、to have been spending