. It is important to know exactly the message ________ and ________.
| A．you want to send it to people; that you try to get them to do |
| B．sent to people; what do they want to do |
| C．you want to send; which you want people to know |
| D．you want to send to people; what you are trying to get them to do |
Parents ___ much importance to education. They will do their best to give their children that priceless gift.
| A．attach | B．pay | C．link | D．apply |
When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
| A．refers to | B．related to | C．comes to | D．talks to |
Would it be ___ for you to pick me up at four o’clock and take me to the airport?
| A．free | B．vacant | C．handy | D．convenient |
—You speak very good French!
—Thanks. I ______ French in Sichuan University for four years.
| A．studied | B．study | C．was studying | D．had studied |
We should consider _______ use can be made of such a piece of cloth.
| A．what | B．that | C．how | D．which |