Summer is _______ good time for keeping fit, so you can join a sports club to help build your body in _______ summer of 2011.
| A．a; the | B．/; / | C．a; / | D．/; the |
I have seen trees, _____ open at sunrise and close at sunset.
| A．which the leaves | B．of that the leaves |
| C．whose leaves | D．its leaves |
___ is known to all, China is a developing country, belonging to the third world.
| A．It | B．That | C．As | D．Which |
She showed her new watch to my wife, ___ was kept in a box.
| A．who | B．which | C．that | D．it |
The reason ______he didn't come was ______he was ill.
| A．why; that | B．that; why |
| C．for that; that | D．for which; what |
We travelled together as far as Chicago, _______ we parted.
| A．when | B．which | C．why | D．where |