Emergency line operators(接线员) must always _____ calm and make sure that they can get all the information they need to send help.
Surprisingly, Susan’s beautiful hair reached below her knees and made ___ almost an overcoat for her.
Why don’t you bring ___ to his attention that you are too ill to work on?
He was a good student and scored ___ average in most subjects.
Many people in China make ___ a rule to go back home at the Spring Festival.
—It’s a lovely day, isn’t it? —Yes, I love ___.