30. More than 20 years ago he was badly wounded in the anti-Vietnam war. Since then he can only walk _____ an arm-chair .
| A．in | B．on | C．by | D．Over |
— It is not clear whether or how Sandy has influenced the vote．
— That's I don’t agree Obviously, the storm was in Obama’s favor.
| A．what | B．where | C．when | D．how |
The traffic rule says young children under the age of four andless than 40 pounds must be in a child safety seat．
| A．being weighed | B．weighed | C．weighing | D．to weigh |
I'm tired out． I all afternoon and I don't seem to have finished anything．
| A．shopped | B．have shopped | C．had shopped | D．have been shopping |
Helping others is a habit,you can learn even at an early age．
| A．it | B．that | C．what | D．one |
— I've studied gardening as a hobby． Could I make some questions?
—.
| A．Go right ahead | B．It's up to you |
| C．Take it easy | D．It all depends |