He _______ busy yesterday, or he _______ you with your experiment.
A．was; had helpedB．was; would have helped
C．had been; would have helpedD．were; would have helped
B

試題分析：本題實際上考察的是or(否則，要不然)引導的含蓄的虛擬條件句。前面句中含有yesterday這個過去時的時間狀語，故使用過去時即可。Or后面的句中要使用與過去事實相反的虛擬語氣would have done的形式。句義：昨天他很忙，要不然他就會幫助你做實驗了。故B正確。
練習冊系列答案
相關(guān)習題

科目：高中英語 來源：不詳 題型：單選題

In order to do something meaningful, it’s necessary that you _______ determine what is really important.
A．mustB．willC．needD．should

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

You didn't let me drive. If we     in turn, you      so tired.
A．drove；didn't getB．drove；wouldn't get
C．had driven；wouldn't have gotD．were driving；wouldn't get

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

－Any information about your son?
－No，if only I  ______ those tough words to him．
A．didn’t sayB．hadn’t saidC．shouldn’t have saidD．couldn’t have said

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

---Did Mr. Zhu come to help you yesterday?
--- Yes, but I would rather _____. He caused me a lot of trouble.
A．not haveB．notC．he didn'tD．he hadn't

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Doctors strongly recommended that my father         more exercise regularly instead of sitting still before a computer all day long.          
A．takes B．take C．took D．had taken

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

If we ______ day before yesterday, we would have done the job.
A．hadn't been interruptedB．weren't being interrupted
C．wouldn't be interruptedD．weren't interrupted

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

We lost our way in that small village, otherwise we ___ more places of interest yesterday.
A．visitedB．hadvisitedC．wouldvisitD．wouldhavevisited

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

It is required by law that the children above six years old in our country ________ to school to receive education.
A．would be sent B．a(chǎn)re sentC．be sentD．will be sent

查看答案和解析>>

同步練習冊答案