Giúp em với ạ , em cảm ơn

Giúp em câu 15 với ạ

RELATIVE CLAUSE 1. The pub is opposite the Town Hall. I first met my wife in the pub. 2. He was sitting on a chair. It was uncomfortable. 3. He smokes cigarettes. They are very strong. 4. Let me see the pictures. You took them at Peter’s wedding. 5. Do you know that lady? I repaired her car. 6. My flat is in an old part of the city. It was built in the 1920s. 7. There are lots of bars and restaurants in the neighbourhood. I live in the neighbourhood. 8. The local market sells excellent local produce. It is a two- minute walk from my flat.

Bài 2 : Đúng hay sai ? Nếu sai thì sửa cho đúng ? a) b) ; c) d) e) f) ; g) ; h) i) ; k) Căn bậc hai của 400 là 20 ; l) Căn bậc hai số học của 1000000 là 1000 ; n) Căn bậc hai số học của -16 là 4