Part: Each sentence has a mistake. Find the mistakes and correct them 1. I think I've lost my pen. I've look at it everywhere, but I can find it nowhere 2. I haven't met all of my friend since we leave school 3. Neil Armstrong, whom first walked on the moon, lived in the USA 4. A new department store was building in our town last month  

Cách làm:
- Đọc từng câu một và xác định lỗi trong câu đó
- Tìm lỗi và sửa lại cho câu đó đúng ngữ pháp

Câu trả lời:
1. I think I've lost my pen. I've looked for it everywhere, but I can't find it anywhere.
2. I haven't met all of my friends since we left school.
3. Neil Armstrong, who first walked on the moon, lived in the USA.
4. A new department store was built in our town last month.

A new department store was built in our town last month.

Neil Armstrong, who first walked on the moon, lived in the USA.

I haven't met all of my friends since we left school.

I think I've lost my pen. I've looked for it everywhere, but I can't find it anywhere.