The public transport system in Beijing is very good now, so there _____be any difficulty in traveling around the city.
. In order to learn the _______ of the family business, Bill took a job as messenger boy in one of the offices.
Electricity, like other forms of ______, has greatly increased in price in recent years.
—Hello, I’d like to speak to Henry.—Oh, which _______? There are two ______ in our office.
Jim was late for two classes this morning. He said that he forgot both of the ______.
—How can I use this washing machine?—Well, just refer to the _______.