改错。1. He often goes shopping and his mother.2. He came here at the age of he was

题型：同步题难度：来源：

改错。1. He often goes shopping and his mother.
2. He came here at the age of he was seven years old._____
_____

答案

1. and→ with  2. at the age of→ when 或 he was seven years old → seven