Jack is now ____than he used to be.
A. happy
B. happier
C. happiest
D. happyer
Đáp án đúng: B
Dịch: Jack bây giờ hạnh phục hơn hồi xưa
In Viet Nam, it is normally_______ in the South than in the North.
I can learn a subject___ if I like it and____ if I don't like it.