选择
题目
选择
1.-I wonder why he left without a word.
-He( )some trouble for he looked dull.
A.could have had B.should have had C.can have had D.must have had
2.The manager discussed the plan that they would like to see( )the next year.
A.carry out B.carrying out C.carried out D.to carry out
3.It's necessary to be prepared for a job interview.( )the answers ready will be of great help.
A.To have had B.Having had C.Have D.Having
改错
1.Add three to four makes seven.
2.He gets lost.I can say that he can be a stranger to this city.
是单句改错
答案
1.D 2.C 3.A
改错题:1.把makes 改为make
2.把第二个can 改为 must.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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