到底是have problem doing sth 还是have problems doing sth
到底是have problem doing sth 还是have problems doing sth
是have some problem doing sth.还是have some problems doing sth.
1.是have problem (in) doing sth.还是have problems (in) doing st
到底是have a problem in doing sth
have problems in doing sth 和have a problem in doing sth
have problem doing还是have problems doing?
是have difficulty doing sth还是have difficult doing sth?
have problems doing sth与 have trouble doing sth
have somebody do sth 还是doing sth?
have problems with to do sth 和doing sth 区别
have no problems (in) doing sth.中的problem永远都加s吗?
have problems/trouble doing sth 中problem为什么要加s