— Look, where are you going?
— I can’t ________ the map and drive at the same time, can I?
| A．watch | B．read | C．see | D．notice |
.Early to bed and early to rise ______ a man healthy, happy and wise.
| A．making | B．to make | C．make | D．Makes |
.Mathematics ______ the language of science.
| A．is | B．has been | C．are | D．have been |
.The young ______ the vital forces in our society.
| A．is | B．has been | C．are | D．have been |
.Every man, woman and child ______ some history, enough at least, to survive in the world.
| A．knows | B．know | C．is known | D．are known |
.None of them ______ my friends.
| A．is | B．are | C．was | D．has been |