—Car prices have been going down sharply in the last 20 years.—It’s not surprising because the law of market _____the price of a product
______ is known to everybody, the moon travels round the earth every month.
When you are driving on this road, you have to limit your speed _____ 60 miles per hour.
—What do you mean. There are only ten tickets? —There ______ be twelve.
Jane is said _______ an opera singer in her youth.
It is in Qingdao ______ you are going to pay a visit to ______ this kind of washing machine is produced.