Complete the second sentence so that it has a similar meaning to the first sentence

Ex1. Complete the second sentence so that it has a similar meaning to the first sentence
1. This pen belongs to Phong.
→ This is .......................................................................................
2. He’d rather play golf than tennis.
→ He prefers ...................................................................................
3. Mai broke the cup because of her carelessness.
→ Because Mai ................................................................................
4. How long is it since they built the house?
→ When ......................................................................................
5. You are not allowed to smoke here.
→ Would you mind ........................................................................