题目内容

— Has Sam finished his homework today?　　
— I have no idea. He ________ it this morning.　　
A．didB．was doingC．has doneD．had done
B
考查动词的时态。根据this morning可知句子要用一般过去时态的某种形式，且表明今天早晨我看见他时他正在做作业，所以选B。
练习册系列答案
相关题目
Considering his health, I advise him to ______ an hour or two each day to work out.
A．set aboutB．set offC．set upD．set aside
It is very important for us to _______ between good and bad.
A．rejectB．realizeC．rangeD．distinguish
In buses, all of us _________ thieves.
A．keep an eye out forB．are keep an eye out for
C．are kept an out forD．keep eye out for
This sentence is difficult to understand.Can you make         of it?
A．senseB．knowledgeC．ideaD．understanding
The best way to deal with these bad habits is not to _______ the habit in the first place.
A．get intoB．come intoC．knock intoD．run into
No further financial problem ________, but we once couldn’t make both ends meet．
A．roseB．aroseC．arousedD．raised
He was found guilty. _____, he lost the job and was blamed for incompetence.
A．In case
B．As a consequence
C．After all
D．In a row
The impact of a teacher ___the life of the students should be ____ enough attention to.
A．in; broughtB．on; paidC．to attractedD．for; captured

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