English is ____ a bridge to so____knowledgeI found _____too hard to learn English grammer.A.that B.it c.this D.that's要理由
问题描述:
English is ____ a bridge to so____knowledge
I found _____too hard to learn English grammer.
A.that B.it c.this D.that's
要理由
答
d
答
选B
答
D.that's
too hard to 太难而不能.用that,this要加句子吧.
用B的话,肯定要加动词,也就是用it is.
答
it