_____is too hard _____ a good solution to this problem.
| A．It; finding | B．This; to find | C．This; finding | D．It; to find |
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 |
I really like the photo of my family________my sister took in the city last year．
| A．which |
| B．who |
| C．what |
| D．whom |