找出下列英语句子的错误并改正

题目

找出下列英语句子的错误并改正
1、His uncle is going to return back from Australia next week.
2、There was a pen on the floor and Linda picked up it.
3、Mike and his friend decided to go for ride on Sunday.
4、Why didn't your friend David finished his homework last week?
5、Mr Smith noticed the bottles in the room was all in pieces.

答案

1 去掉back
return 返回,本身= come back,后面再接back显然多余
2 picked up it 改成 picked it up
当pick up 与it等代词一起使用时,it等代词需放在中间
3 for 后面加上一个 a
go for a ride 固定搭配,兜风
4 finished 改成 finish
前面已经有助动词didn't 了
后面谓语动词应该用原型
5 was 改成 were
bottles 是复数
所以应该用were