1Can jack and his classmates （）good friends?（be）2My birthday is on the third of October（同义句）3.He takes good care of his sister（同义句）4.This dictionary is（）（help）to us.
问题描述：
1Can jack and his classmates （）good friends?（be）2My birthday is on the third of October
（同义句）3.He takes good care of his sister（同义句）
4.This dictionary is（）（help）to us.
答
be
My birthday is October 3.
He looks after his siter very good.
helpful
答
1、be
2、The third of Octorber is my birthday.
3、His sister is taken good care by him.
4、helpful
答
1 be ( can 后接动词原形）
2 The third of October is my birthday .
/
I was born on October 3rd .
4 He looks after his sister well .
好好照顾 look after ..well = take good care of
5 helpful 有用的.
加油!不明白再问!