Mr. Tiger is always cheerful, and he is always friendly to his students.
How many times____Chang’e I____the moon ? —Only once.It ____there last year.
This is ____ song I told you about yesterday. Isn’t it _______ beautiful one?
Many birds are out of ____________ now, because we have done a lot of things to protect __________ birds.
It’s autumn in Beijing now. Most of the leaves have fallen down. — Yes. Only a few leaves _______ on the trees.