Mom, this is my teacher, Miss Lin. Miss Lin, ____A. thank you. B. how are you? C. this is my mom.
If I felt some pain, I’d stop _______ .
Don’t cut in line, or other people may _______.
Tom is a friendly boy, so he is very easy to _______ .
There is _______ bridge in the old town.
Students need at least eight hours to sleep, or they are_______ in class.