The workers _____busily when the boss came to look for something she ______in the office.
A had worked, had left  B were working ; had left  C working ; had left  D had worked; left
B
前一空表示當時正在進行的動作，所以用過去進行時，第二空用過去進行時表示這動作在came之前。
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 some parts of the world, tea _______ with milk and sugar.
A．is servingB．is servedC．servesD．served

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

With the help of high technology, more and more new substances ______ in the past years.
A．discoveredB．have discovered
C．had been discoveredD．have been discovered

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The vegetables didn’t taste very good. They ______ too long.
A．had been cookedB．were cooked
C．have cookedD．cooked

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

I’d rather you did some housework when you are free, but you __________.
A．weren’tB．didn’tC．wouldn’tD．don’t

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Jimmy said that he would come to pick me up, but he _______ by now.
A．hasn’t turned upB．doesn’t turn upC．won’t turn upD．hadn’t turned up

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Every day you _____to yourself: "I have plenty of time. I’ll learn my lesson tomorrow"
A．saidB．sayC．sayingD．have said

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

I first met Mr. Smith in America. He ______ at Stanford University then.
A．studiedB．has studied
C．is studyingD．was studying

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—When will the train start？
—It _____ at 2:35 in the afternoon according to the timetable. 
A．startsB．will startC．would startD．started

查看答案和解析>>

同步練習冊答案