doing sth is important为什么是DOING?
doing sth is important为什么是DOING?
doing sth is important for sb?
important do sth 还是,important doing sth
important to do/doing sth.
为什么是 look foward to doing sth?
为什么是claim to do sth.而不是claim doing sth.
英语语法简单问sb is doing sth 的谓语是什么sb doing sth 的doing 是动名词吗,Sunda
think doing sth think为什么能接doing sth
it is no it is no use doing sth为什么不是it is not use doing sth?
英语翻译sth.is important to sb.再加 on doing sht么?
It is no harm doing sth与It is not harmful doing sth可以替换吗?为什么
是have difficulty doing sth还是have difficult doing sth?