Most of us will spend most time _____lessons.
Children need friends _____ their own age to play with.
This time I don’t know if I _____ the exam. If I _____ the exam, I’ll have a great vacation.
I will get my good friend Amy _____ you when you are in the USA.A. to help B. helpC. helping D. helped
— Kitty, do you know ______?— Sure, about forty minutes.
The teacher can _________believe that Tom studies so ________.