If you want to be healthier,you should eat ______ meat and______ vegetables .
--- The boy ___________ and then he __________ after he took the medicine.
---As a student, I can’t afford __________ a new mobile phone.
English is not easy, but I never __________.
---Your help made __________ for me to work out this problem.
---I don’t think _______ Maths is easy.