----Boys and girls, will you please ____ the park this afternoon? ----OK.
| A．not cleaning out | B．not to clean out | C．to clean up | D．clean up |
The Opera House of Sydney was______designed like shells floating on the sea.
| A．commonly | B．creatively | C．carefully | D．clearly |
I expressed my opposition directly and I don’t want to give you a (n) ______impression.
| A．urgent | B．illegal | C．impolite | D．false |
Some experts warn that global wanning will______more than one million sorts of plants.
| A．turn dnwn | B．bring in | C．wipe out | D．take away |
The company had to______a number of workers because of the drop in sales.
| A．see off | B．take off | C．cut off | D．lay off |
Billy was the youngest boy on the hike, but he______with the others.
| A．kept up | B．turned up | C．caught up | D．drew up |