In English class, our teacher often creates an environment _____ we are given the opportunity to solve problems ourselves．
| A．when | B．which | C．where | D．that |
If you like, ____ at any time.
| A．call on | B．drop in | C．visit | D．pay a visit to |
George’s mother had thought it would be good for his character to _______
from home and earn some money on his own.
| A．run away | B．take away | C．keep away | D．get away |
Ugly papers sold on streets are another problem of pollution.
Young readers should _____ them.
| A．throw away | B．keep away | C．break off | D．get rid of |
Both the man and his horse ________ after the long ride.
| A．gave out | B．worn out | C．tired out | D．run out |
When you ______ the book please return it to the library on time.
| A．get through | B．get along | C．look through | D．look up |