—______ is your teacher?—Mary. She is a nice girl.
–We can use it to chat with each other on the Internet. --Really? Will you please show me _______ it
We _____ in this pool when we were young, but now it _____ fish.
I study math by ____ lots of exercises.
_______ honest boy he is ! We all like him.
–Is there ______ in today’s newspaper? --Oh, no. There _____ only some news in it.