欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

相關(guān)習(xí)題
 0  88847  88855  88861  88865  88871  88873  88877  88883  88885  88891  88897  88901  88903  88907  88913  88915  88921  88925  88927  88931  88933  88937  88939  88941  88942  88943  88945  88946  88947  88949  88951  88955  88957  88961  88963  88967  88973  88975  88981  88985  88987  88991  88997  89003  89005  89011  89015  89017  89023  89027  89033  89041  151629 

科目: 來源: 題型:單選題

What? Is it the first time that this _________?

A.happened B.has happened C.had happened D.happens

查看答案和解析>>

科目: 來源: 題型:單選題

The meeting began two hours ago and because no decision _______, we will continue our discussion tomorrow.

A.has made B.has been made C.had made D.had been made

查看答案和解析>>

科目: 來源: 題型:單選題

I had been working on math for the whole afternoon and the numbers ________ before my eyes.

A.swim B.swam C.swimming D.had swum

查看答案和解析>>

科目: 來源: 題型:單選題

----Are you a teacher?
----No, but I ______ in Harbin No. 3 High School for 3 years.

A. had taughtB.has taught C.teachD.taught

查看答案和解析>>

科目: 來源: 題型:單選題

—Ann is in hospital.
—Oh, really? I ________ know. I ________ go and visit her.

A.didn't; am going to B.didn't; will C.don't; will D.don't; would

查看答案和解析>>

科目: 來源: 題型:單選題

By the time I see you again, I _______ from that school.

A.have graduated B.graduated C.will have graduated D.graduate

查看答案和解析>>

科目: 來源: 題型:單選題

A new kind of drug ___ ___ to cure H7N9 bird flu by the scientists and they are hopeful that they will succeed in a couple of weeks.

A.has been developedB.is being developedC.is developingD.has developed

查看答案和解析>>

科目: 來源: 題型:單選題

Yangzhou high school ___________ since 1902. 

A.has come into existence B.has been existed C.has been in existence D.began to exist 

查看答案和解析>>

科目: 來源: 題型:單選題

By the time Jack returned home from England, his son  _______  from college.

A.graduatedB.has graduatedC.had been graduatingD.had graduated

查看答案和解析>>

科目: 來源: 題型:單選題

Do you think that bridge _________2,000 metres long? It doesn’t appear so long.

A.measures B.is measured C.has been measured D.is measuring

查看答案和解析>>

同步練習(xí)冊答案