1.Mary ____ my letter; otherwise she would have replied before now .
题目
1.Mary ____ my letter; otherwise she would have replied before now .
A has received B ought to have received C couldn’t have received D should to have received
2.From tears in Nedra’s eyes we can deduce that something sad _____ .
A must have occurred B would have occurred C might be occurring D should occur
3.The millions of calculations involved ,had they been done that by hand ,____ all practical value by the time they were finished .
A could lose B would have lost C might lose D ought to have lost
4.My pain ___ apparent the moment I walked into the room ,for the first man I met asked sympathetically ,”Are you feeling all right?”
A must be B had been C must have been D had to be
5.You ___ all these parcels yourself .The shop would have delivered them if you had asked a shop assistant .
A didn’t need to carry B needn’t have carried C needn’t carry D didn’t need carry
答案
1.C,从题意判断:应该还没有收到,收到就应该回复了.
2.A 我们能推断出一定有些让人伤心的事情发生了.
3 D 这些千万的计算项目如果用手算的话,在算出时就应该失去了价值.
4 C 本题是主人公由别人问句推断自己的行为,推断为疼痛一定很明显
5 A 本题为过去时,need这里不作情态动词.
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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