Emergency line operators(接线员) must always _____ calm and make sure that they can get all the information they need to send help.
What do you mean, there are only ten tickets? There ______ be twelve.
Could I speak to ______ is in charge of International Sales please?
How much ______ she looked without her glasses!
Let's go to ________ cinema — that'll take your mind off the problem for ______ while.
—It looks heavy. Can I give you a hand? —________.