(A.That,s;be)(B.It,s;to be)(c.That,s;are)(d.It,s;being) ()important for Chinese () good at English.
问题描述:
(A.That,s;be)(B.It,s;to be)(c.That,s;are)(d.It,s;being) ()important for Chinese () good at English.
答
b
it's important for sb to do sth是个固定搭配