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 occurr

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 occurr
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

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 occurr
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.

dcbac

1.首先排除d，因为should后不能有to，通过otherwise这个转折词可知排除a,b。只能选c
2.选c，b表示本来可以发生却未发生，d表示将要发生都与事实不符，所以排除。a,c在语法上都没错，但语气上c更合适
3.c，不太好解释，直觉是c
4.b，c表示推测，d表示不得不，所以先排除c,d，a表示必须显然翻译不通。由后句i met the man，是过去时，所以在...

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1.首先排除d，因为should后不能有to，通过otherwise这个转折词可知排除a,b。只能选c
2.选c，b表示本来可以发生却未发生，d表示将要发生都与事实不符，所以排除。a,c在语法上都没错，但语气上c更合适
3.c，不太好解释，直觉是c
4.b，c表示推测，d表示不得不，所以先排除c,d，a表示必须显然翻译不通。由后句i met the man，是过去时，所以在过去的过去，应用过去完成时，选b
5.b，首先排除d，need在didn't后就表示它不是情态动词了，所以d中need后无to，一定错。由题意此人已做了，所以选b，a,c表示还没做什么，某人不需要做什么。
注：小弟学识浅薄，如有错误，愿闻指正。

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