—How could you be so rude as a walk in here in the middle of my class?—________.(2011·四川,5)
Parents ___ much importance to education. They will do their best to give their children that priceless gift.
When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
Would it be ___ for you to pick me up at four o’clock and take me to the airport?
—You speak very good French! —Thanks. I ______ French in Sichuan University for four years.
We should consider _______ use can be made of such a piece of cloth.