There was something wrong with the network, or the e­mail ________ earlier.
A．could have been sentB．might be sent
C．need have been sentD．must be sent
A
A 考察虛擬語氣。句義：網(wǎng)絡出了問題，否則那封電子郵件本可以早點發(fā)出去的。Or表示的是含蓄的虛擬語氣，后面的句中相當于主句，根據(jù)前面句中的一般過去時可知，or后面的句中謂語動詞應該是should/could/would+ have done。故A正確。
練習冊系列答案
相關習題

科目：高中英語 來源：不詳 題型：單選題

Mr. White _____ at 8:30 for the meeting, but he didn’t show up.
A．should have arrived B．should arrive
C．should have had arrived D．should be arriving

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

---My little daughter is coughing worse than ever.
---She ______ to the hospital yesterday.
A．had to be takenB．should have taken
C．must have been takenD．ought to have been taken

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—We expected you yesterday.
—I’m sorry，I ________ you to say that I couldn’t be here until today.
A．should have calledB．must have called
C．could callD．would call

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The project was carefully planned, or a great deal of money ________.
A．will loseB．will be lost
C．would have lostD．would have been lost

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 come to the party last Sunday. ________， she must have made the party more exciting.
A．If she cameB．Would she come
C．Had she comeD．Did she come

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

I _________  to the party with you tomorrow if I didn’t have to attend the meeting.
A．wentB．had goneC．would go D．would have gone

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

(2013·陜西師大附中模擬)If we had taken such effective measures much earlier, the river ________ so seriously now.
A．is not polluted
B．would not be polluted
C．had not been polluted
D．would not have been polluted

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

----Did you make it at last?
----Yes. But for your help, it _____ a serious loss.
A．would causeB．must have causedC．might causeD．would have caused

查看答案和解析>>

同步練習冊答案