If you don’t know who _______, you can always write to me.
Don’t worry about the new words. You can _________in a dictionary.
__________the mooncakes are!
—How do you learn English, Tony?—I often practice English _____ chatting ______ my American friends.
She is a ___________ girl. And she does everything ___________.
We walked for ___________ hours before we got to the top of the mountain.