Some people fear that ________ air pollution may bring about changes in _______ weather around the world.（）
| A． |
/; the |
B． |
the; / |
C． |
an; the |
D． |
the; a |
In a sports team each player has a clear role，and there are few occasions ________members are confused or uncertain about their roles.
| A．whose | B．that | C．when | D．which |
—I’m green at everything.
—Don’t worry. ________you get older，you will get more experience.
| A．As | B．Till | C．Unless | D．Since |
As a film star she was a success，but as a wife she was ________failure，so their marriage ended in ________failure.
| A．不填；不填 | B．不填；a | C．a；a | D．a；不填 |
—You are late again，Tom?
—Sorry，but I got ________a heavy traffic jam.
| A．caught in | B．taken in | C．put off | D．held by |
John opened the door. There _____ he had never seen before.
| A．a girl did stand | B．a girl stood |
| C．did a girl stand | D．stood a girl |