He is so old that he can _____ himself now.
Sometimes playing computer games can ______ students’ study.
— I don’t know the new word. — It doesn’t matter, you can ______ in the dictionary.
We teachers should ______ students ______ us questions in class.
— I have trouble ______ my new computer.— Don’t worry. I will show you ______.
It’s dark. I would rather ______in bed than ______a walk outside.