Robin broke his left leg in the basketball match last week, since then he __________ in bed.
Although you have lots of difficulties, you must ______your work.
He _____get up late, but now he gets up earlier.
Nothing can ______ the girl from _____ there.
---Are you going to go shopping this afternoon? ---No,I'm _____ tired _____go.
Stamps are usually used _____letters.