Although he earn a small salary, he is happy

Giúp mình với mình cần gấp
1. Although he earn a small salary, he is happy
-> In spite
2. She doesn't have enough money so she can't buy the dictionary.
-> If he
3. We visited our old school when we went to Ho Chi Minh city.
-> We haven't
4.Hoa can't go to school because she is sick. -
> Hoa