We have been good friends for many years. We often______each other on the Internet.A. pick upB. are angry atC. keep in touch with
—What _______is your bag? —It’s yellow.
I am a student. ________name is Tom.
—What’s this ______ English? —It’s a pencil.
—Good morning, Eric. —________, Cindy.
We must be strict __________ourselves __________ our work.