Question

Tìm lỗi sai 
My brother worked as a docter since 2000
Nile river is more longerthan mekong river
If you study harder, you would pass the exam
there are a book on the table

Answer 1

1 worked => has worked

2 more => much

3 would => will

4 are => is

Answer 2

worked=>has worked

more=>x

would=>will

are=>is

Answer 3

1. worked -> has worked

2. more longer -> longer

3. would -> will

4 a book -> some books

Answer 4

1 worked => has worked

2 more => much

3 would => will

4 are => is