He had no difficulty working out the problems.把 working out 换成 to have worked out行吗?

相关推荐

• she had no difficulty _ the problem.A.worked out B.working out C.to work out D.to have worked out
• He made it in the end.but he didn't explain to us what great difficulty he had had _______ theproblem.A. working out B.to work out C.work out D worked out.答案是A,我选的是D,为什么,写出理由
• He had no difficulty working out the problems.把 working out 换成 to have worked out行吗?
• He had no difficulty working out the problems.把 working out 换成 to have worked out行吗?
• she had no difficulty _ the problem.A.worked out B.working out C.to work out D.to have worked outshe had no difficulty ___ the problem.A.worked out B.working out C.to work out D.to have worked out 为什么选B
• Jane has gone to beijing for at least five days.(用how long对划线部分提问)
• He had no difficulty__the problem.a:working out b:to work out a or why?