She spent an ______ one week to finish the paper.
| A．addition | B．add | C．additionally | D．additional |
It’s recommended that our plan _____ until it was tested again.
| A．put off | B．be put off |
| C．should put off | D．would be put off |
The use of an alcohol breath test by the police greatly reduces the ____of drivers causing traffic accidents．
| A．possibility | B．pressure |
| C．preference | D．Production |
The couple give ________ attend their 50th wedding anniversary some gifts to share their happiness.
| A．whoever | B．whomever | C．whom | D．Who |
So touching_____ that I couldn’t hold my tears back when I heard it for the first time
| A．the song sounds | B．had the song sounded |
| C．the song sounded | D．did the song sound |
Frequent smoggy weather has set the alarm ringing; by no means can we develop economy _____ the environment.
| A．under the name of | B．for the sake of |
| C．at the cost of | D．in the light of |