问题
of language learning,________ has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.
A:as
B:it
C:which
D:this;
B:it
C:which
D:this;
正确答案是：
同类题型
How do you like your new job，Sam—It’s so _________ . I don’t like it atall.
We want someone to design the new art museum for us. -_____ the young fellow have a try
He telephoned the travel agency to ________ three air tickets to London.
Do you often use Baidu—-Yes, it’s one of ___________Internet search engines.