Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.worked...Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.workedC.working D.to work

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Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.worked...Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.workedC.working D.to work

Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.worked...Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.workedC.working D.to work
Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.worked...
Did you have difficulty in study?
Yes,____ out the math problem like this.
A.work B.worked
C.working D.to work

Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.worked...Did you have difficulty in study?Yes,____ out the math problem like this.A.work B.workedC.working D.to work
应该是in studying ,
working out the math problem like this.

C 还原回去就是 I have difficulty in working ...

选c,have difficult in doing sth

C

choose C.
肯定正确,你赶紧把悬赏分给我吧,急用呢。。。

C

应该是c答案

come 是个短暂性动作,在这里只是说我“到达”这一动作,而been可用作一个持续或长时间一点的的动作。一般现在完成时是用持续完成状态的。 意思大概就这样

C

选C
I have difficulty in working ... 省略了前面的内容