Emergency line operators must always _______calm and make sure that they get all the information they need to send help.A. grow B. appear B. become D. stay
This is the office _____ my parents are visiting now.
Everybody got ____ when they heard the ____ story.
Nobody can imagine what difficulty we had _____ home in the snowstorm.
One minute she burst into ____, and the next she burst out ____. We just couldn’t catch her mood at any moment.
Tom ____ have kept his word. I wonder why he changed his mind. A. must B. should C. need D would