1.It may have been at christmas____john gave mary a handbag.

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1.It may have been at christmas____john gave mary a handbag.
A.before.B.who C.that D.when 这个题目选那个啊.为什么
2._____the rain stop,the crops would be saved.
A.will B.should C.would D.did
请问这选那个啊.为什么?
为什么不能用did.

选C
我跟我老师询问了下这个应该是强调句的变形因为如果是主语从句那么这个句子就是主系表结构这个结构的主语跟表语的性质应该是一样的如果这个是主语从句的话就成了Jone给Mary包是在圣诞节一件事和一个时间在性质上是不对等的所以不是主语从句
第二个选B
虚拟语气的倒装,当if条件句的谓语部分是should/had/were时,可以省略if,然后把这3个词提到主语之前
if the rain should stop,the crops would be saved 如果雨能停的话,庄稼就得救了

John gave Mary a handbag at Christmas. I may habe been at Christmas__John gave Mary a gandbag.A.he may i have a look at it? When did Mary lose her handbag? — It was at Christmas ___she May I have a look at it,please? May I have a look at it more ______(close)? may I have a look at it,为什么要用at 能不能不用 1.may i have a look at your letter? take a look at that car,it must have been expensive,为什么用have 帮忙改错："May I have a look at it?""No,you mayn't". Oh,what a nice photo!May I have ______ look at it? May I have a look at it?请知道的朋友帮忙译一下这句话