—I didn’t know this was a one-way street, officer.
— ________
| A． That’s all right. |
| B． I dont believe you. |
| C． How dare you say that? |
| D． Sorry, but that's no excuse. |
.Four-fifths of the crop ______.
| A．are ruined | B．was ruined | C．were ruined | D．have been ruined |
.Three-fourths of the buildings ______.
| A．was destroyed | B．is destroyed | C．were destroyed | D．has been destroyed |
.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 |