. The millions of calculations involved, had they been done by hand, _____ all practical value by the time they were finished.
A．could loseB．would have lostC．might loseD．ought to have lost
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：單選題

Tom with his friends ______ volleyball since three o’clock.
A．has been playing B．is playingC．have been playing D．have played

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


In fact, the house as well as his two cars ______ him all the money he earned during the 20 years．
A．has been costB．have costC．has costD．have been cost

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


Yang Jiazheng_____a book about Shuangqiao village last year but I don't know whether she has finished it.
A．has writtenB．wroteC．had writtenD．was writing

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


My toothache is killing me．I _____ it _____ away．But now it’s getting worse and worse．
A．think; is goingB．thought; was going
C．have thought; is goingD．had thought; had gone

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


.A 78-year-old retired engineer has built a capsule hotel for Beijing’s “ant tribe”. Among the 6 volunteers to try out the apartments on April 3____ Sun Changyun, a college student from Shenyang.
A．wereB．a(chǎn)reC．wasD．is

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Who did the famous actress, Nicole Kidman, as well as the director, ___ the prince to the
concert which would be held in the open air?
A．has invitedB．has inviteC．have inviteD．have invited

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

She didn’t tell her mother of the great wrong that __ to her the day before.
A．doneB．would be doneC．had doneD．had been done

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


．— Have you got your result of the final?
— Not yet．I was told that the papers _________-.
A．were not gradingB．have already been graded
C．were still being gradedD．have not grading

查看答案和解析>>

同步練習(xí)冊答案