Rewrite: He can't buy the computer because he doesn't have enough money

viết lại câu và giữ nguyên nghĩa:
1. He can't buy the computer because he doesn't have enough money.
-> If.................................
2. They are building a new museum in the city centre.
-> A new museum........................................
3. The police belived that the thief was still in the house.
-> The thief.....................................