--you interrupt now? Can't you see I'm on the phone?
--Sorry sir, but it's urgent.
| A． | Can | B． | Should | C． | Must | D． | Would |
As a student, I want to use my creativity to _____ possible solutions to the problems I meet with.
| A．explain | B．express | C．ignore | D．explore |
The changes of the plants and animals in an area ________ from differences in climate and the nature of the country.
| A．rise | B．raise | C．arouse | D．arise |
We all agree that the young boy’s brave act _____ the highest praise.
| A．reserves | B．deserves | C．survives | D．serves |
She looked at the pretty vase I bought at the market and said it was a real _____.
| A．command | B．debate | C．bargain | D．reception |
Betty has a very tight _____ this weekend so she has turned down the dinner invitation.
| A．schedule | B．headline | C．outline | D．incident |