—Those scientists invented a robot to care for kids! —It's not surprising.They ________ wonders all the time.
A.worked
B.were working
C.work
D.have been working
试卷相关题目
- 1If my father ______here now, he _____ tell me what to do. But he left home just one hour ago.
A.were, would
B.were, will
C.is , would
D.is, will
开始考试点击查看答案 - 2She has been given three free tickets for tomorrow's concert and she ______ there with two of her best friends.
A.has gone
B.is going
C.has been
D.went
开始考试点击查看答案 - 3.The moment I got home, I found I _______ my jacket on the playground.
A.had left
B.left
C.have left
D.was leaving
开始考试点击查看答案 - 4Our monitor talks about Mars as if he ______ a scientist.
A.is
B.were
C.be
D.had been
开始考试点击查看答案 - 5Daniel's father left home in 2001,and ______ ever since.
A.has not heard of
B.had not heard of
C.has not been heard of
D.had not been heard of
开始考试点击查看答案 - 6---Why do you keep looking back? ---I have a feeling that we _______.
A.were followed
B.have been followed
C.are being followed
D.are following
开始考试点击查看答案 - 7—Why did you leave the water running in the sink? —My goodness! I guess I ____ to turn off the tap.
A.forgot
B.have forgotten
C.forget
D.had forgottten
开始考试点击查看答案 - 8It is said that a new robot ______ by him in a few days.
A.designed
B.has been designed
C.will be designed
D.will have been designed
开始考试点击查看答案 - 9_________ where the sound lab _________?
A.Has it decided; will built
B.Is it decided; it built
C.Has it been decided; will be built
D.Will it be decided; will be built
开始考试点击查看答案 - 10.The news came as no surprise to me. I ______ for some time that I would fail in the exam.
A.had known
B.knew
C.have known
D.know
开始考试点击查看答案