题目内容

—Has Sam finished his homework today?
—I have no idea. He ________ it this morning.
A．didB．has doneC．was doingD．had done
C
 根据句意“我不知道Sam现在是否已经做完了作业，(但是我知道)他今天早上一直在做作业”，可知要用过去进行时。
练习册系列答案
相关题目
Is there any possible way to help them get rid of such a bad habit?
--- To tell the truth, it’s very hard. But we   on this problem trying to improve the situation.
A．workedB．had workedC．are workingD．had been working
The chairman’s speech ______ the radio when I turned it on.
A．was broadcast onB．was being broadcast on
C．was broadcasting inD．broadcast over
—Will you attend the meeting this evening?
—But I ________ told anything about it.
A．wasn’t　　　B．am notC．haven’t beenD．won’t be
It is said in the book that Thomas Edison (1847—1931) ________ the world-leading inventor for sixty years.
A．would beB．has beenC．had beenD．was
—Did you find the missing couple in the mountain yesterday?
—No, but we ________ to get in touch with them ever since.
A．have triedB．have been tryingC．had triedD．had been trying
I ________ ping-pong quite well, but I haven’t had time to play since the new year.
A．will playB．have playedC．playedD．play
I told him what I was surprised____________  his attitude towards his study.
A．isB．wasC．at isD．at was
They won’t buy any new clothes because they ________ money to buy a new car.
A．saveB．were savingC．have savedD．are saving

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网