1. If I eat dinner with everyone, I won't feel very hungry now.
2. If he is hard, he won't get bad marks.
3. If he learns English well, he can study abroad.
4. If I live near my house, I will visit my parents regularly.
NOTE:
If + S +V(hiện tại đơn),S + will/can/may + V(nguyên mẫu)
*(có thể xảy ra)