Part 4: Each sentence has a mistake . Find the mistakes and correct them . (1, 0m)
1. Would people be able to fly if they have feathers instead of hair?
2. Are these the keys whose Mrs. Janet has been looking for ?
3. We were young and inexperienced. However, we made a lot of mistakes.
4.Tet holiday is one of the more exciting celebrations for Vietnamese people .
1. have => had
2. whose => that
3. However => Therefore
4. more => most