As we know, ________ is good exercise and it is necessary for health.
A. walk B. walks C. walking
Lisa used to________the bus to go to school，but now she is used to________there．
| A．take；walk |
| B．taking；walking |
| C．take；walking |
| D．taking；walk |
We________about l，000 new words so far．
| A．learn |
| B．are learning |
| C．have learned |
| D．will learn |
—Oh，dear！Your room is untidy．
—Sorry，Mom．I’ll________．
| A．set it up |
| B．clean it up |
| C．put it up |
| D．look it up |
Drinking milk every day is________my health．So my mother wants me to drink it every day．
A．good at
B．good for
C．bad for
C．good with
She paid about two hundred________these dictionaries．
| A．on |
| B．for |
| C．at |
| D．to |