When I returned to my study, I found the floor thoroughly______and all my books______according to the types of books
| A．changing; ranging | B．changed; ranging |
| C．have changed; ranged | D．has changed; ranged |
It is clearly stated that these regulations ___ everyone in the community, without exception.
| A．appeal to | B．adapt to |
| C．apply to | D．attach to |
To battle world hunger, the great scientist once traveled to many places where populations _______ faster than crop production at that time.
| A．expanded | B．were expanding |
| C．has expanded | D．would expand |
The government won’t have the public officials ___ asking for gifts or money from people.
| A．coming up with | B．putting up with |
| C．getting away with | D．doing away with |
Unfortunately, some natural signs which might have helped more people survive the earthquake were ________.
| A．abandoned | B．ignored |
| C．deserted | D．rejected |
. ___________ the extreme levels of air pollution, city authorities have started to take measures to quickly reduce pollution levels and protect city dwellers.
| A．In spite of | B．As well as |
| C．In response to | D．By means of |