精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

A. As long asB. UnlessC. Now thatD. While

【題目】The newcomer went to the library the other day and scarched for he could find about Mark Twain.
A. wherever
B. however
C.whatever
D.whichever

—Thanks. I __________ French in Sichuan University for four years.

A.studiedB.studyC.was studyingD.had studied

【題目】Jack is a great talker. It's high time that he something instead of just talking.
A. will do
B. has done
C.do
D.did

【題目】Not until he retired from teaching three years ago having a holiday abroad.
A. he had considered
B. had he considered
C. he considered
D. did he consider

【題目】I feel so excited! At this time tomorrow morning I to Shanghai.
A. will be flying
B. will fly
C. have been flying
D. have flown