Viết lại câu giúp mình với các bạn

1. The man standing there is a clown

2. The envelop lying on the table has no stam on it

3. My grandmother, being old and sick, never goew out of the house

4. The student don't know how to do exercise given by the teacher yesterday

5. The diagrams made by young Faraday were sent to Sir Humphry Davy at the end of 1812

6. The gentleman living next door to me is a well- known orator

7. I saw many houses destroyed by the storm

8. The street leading to the school is very wide