The teacher doesn’t permit ___________in class.
| A．smoke | B．to smoke | C．smoking | D．to have a smoke . |
It is worth considering what makes “convenience” foods so popular, and ______better ones of your own.
| A．introducing | B．introduces |
| C．to introduce | D．introduced |
The information on the Internet______ much more rapidly than that in the newspaper.
| A．gets through | B．gets around |
| C．gets away | D．gets off |
Failure often occurs in our life. Keep ______ about the future, and you will achieve the goal you set sooner or later.
| A．thankful | B．skeptical |
| C．optimistic | D．successful |
This kind of ancient book requires a great deal of .
| A．concentration | B．attraction |
| C．appreciation | D．notice |
—My deskmate accused me breaking her glasses.
—Oh,you had the right to defend yourself her accusation.
| A．of;against | B．for;from |
| C．of;for | D．for;against |