1.是have problem (in) doing sth.还是have problems (in) doing sth.这里的_英语解答

1.是have problem (in) doing sth.还是have problems (in) doing sth.
这里的problem可不可以加s
2.如果是很困难的话problem前加什么?

人气：425 ℃　时间：2019-08-21 15:48:37

解答

have problem (in) doing sth
It is such a difficult problem.