Выберите правильный ответ:
1. When you learn a foreign language, you . . . practice it regularly.
(A) would (B) should (C) could
2. If I had a lot of free time, I . . . go on holiday abroad.
(A) would (B) can (C) will
3. I have toothache. -- You . . . go and see your dentist.
(A) would (B) should (C) can
4. Sue and Tom spend their free time with each other. They . . . like each other a lot.
(A) must (B) can't (C) should
Помогите пожалуйста