—Can I pay the bill by check?—Sorry, Madam, but it is our managing rule that payment ______ be made in cash.
You’d better spend your time just on the things you find ______.
In communication, a smile is usually ______ strong sign of ______ friendly and open attitude.
It is demanded that the plan _____ out as soon as possible.
—Who should be responsible for the accident? —The boss, not the workers. They just carried out the order.
During an interview, journalists always prepare the next question _____ on the interviewee says.