His partents believe ____is possible for him to improve his spoken english quickly with the help...
问题描述：
His partents believe ____is possible for him to improve his spoken english quickly with the help...
His partents believe ____is possible for him to improve his spoken english quickly with the help of a foreigner .Ahim B he C it D that ,为什么选 it 而不是 that
答
C it
believe后面的内容是一个宾语从句,i宾语从句的主语只能用it