steam方舟官网:英语高手请进

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1.May I borrow your dictionary?No you__.
(A)don't(B)need't(C)must't
2.If you lost the book,you will have to__.
(A)pay for it(B)pay it for(C)pay for some money
3.they must't talk loudlyin the reading room.(改为祈使句)
__ __loudy in the reading room.
答题要求:详细说明其解答过程,选择题要说明为什么不选其他选项.
(按情况可适当追加奖分)

1.选C 第一题用May提问最好是用can't来否定的啊!但是这里没有这个选项,按照情理也可用must't回答.A don't是系动词,不能用于否定情态动词may.B need't用于否定时,问句里固定搭配must.
2.选A pay for sth,前面book是单数,故用it.B错因为变成pay sth for了.C错因为如果要表达为...付钱时不应在money前加for,for后+要付钱的对象.
3.Don’t talk loudly in the reading room. 用系动词或行为动词作为祈使句开头.

C 用 May提问,就用must来回答,固定用法
C 初三课本上有
Don’t talk loudly in the reading room.