In the lab, keeping things clean and organized can help provide a safer ________.
| A． |
system |
B． |
method |
C． |
investment |
D． |
environment |
Young people should beto believe that all races are equal.
| A．looked up | B．brought in | C．brought up | D．looked in |
I wasin the middle of my call because I had no more pennies to put in the box.
| A．broken in | B．cut off | C．hung up | D．put down |
It is easy tomy car from others in the parking place;it has an advertisement about Panasonic TV on the back of it.
| A．make up | B．find out | C．pick up | D．pick out |
Could you describe how the accident?
| A．came out | B．came about | C．came along | D．came up |
People usuallysome money for old age.
| A．pick up | B．set aside | C．put off | D．give away |