．——There is a lot of smoke coming out of the teaching-buildi

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．——There is a lot of smoke coming out of the teaching-building there．
——Really?It be a fire,most probably．
A．can B．ought to C．have to D．must
为什么选ought to不选can.不是表示猜测吗?

有most probably,表明肯定性很大,按预期强弱,这四个由强到弱应该是must ,ought to,have to,can.
但是用must,表示一定,后面的most p就不用了,所以不选.have to 的意思不对,一般用法,sb has/have to do.或 it has to be like this仅此两用法.can 没有ought to语气强.所以综上,选ought

．——There is a lot of smoke coming out of the teaching-buildi -There is a lot of smoke coming out of teaching building the There is a lot of smoke coming out of the volcano,it's going .情态动词的选择题---- There is a lot of smoke coming out of the teac There are a lot of writings dealing with the teaching of Eng 看了原文还不会的听力M:There is always a lot of smoke from the chimneys a lot of s____is coming out of the building .it must be on f 句型转换答案1.She saw a lot of smoke coming from next door.（a lot there is a lot of there are a lot of/There is a lot of? there are a lot of grass in the garden there is a lot of gra .She saw a lot of smoke coming from （next door）对括号里的提问