请选出答案并解释一下下题中make an attempt to do 和make an efforts to do的区别..He made an____to solve the problem,but failed again.A.attempt B.efforts C.development D.experience

a effort不可数的。

选A

选A。make an attempt to do尝试试图做某事 make an affort to do努力去做某事，有一点区别，但都有复数

A

应选择A答案,make an attempt to do ；尝试做……事；=try to do make an efforts to do；努力去做……事；=try hard to doA.attempt B.efforts C. development D.experienceA.尝试 B.努力 C.开发 ...

应该选择A, 是尝试的意思,他尝试去解决那个难题,但是又一次失败了~
B因为B是复数,而前面是AN~ 不正确
C是发展的意思 不正确
D是经历的意思,不正确
make an attempt to do 是尝试做某事
make an effort to do是努力做某事

选择A。
make an attempt to do =try to do 尝试去做
make efforts to do=try hard to do努力去做
注意，efforts 前面没有an。