I will do it more carefully __________ it takes me hours.
| A．even | B．till | C．even if | D．if |
Students who graduate with working experience will be given _____ over those who never work in any company.
| A．production | B．preference |
| C．presence | D．preparation |
A survey indicates the _____ of men to women in the population has changed in recent years.
| A．proportion | B．proposal | C．promotion | D．Property |
-- Do you think you could manage it?
--_____. This is my first time to do it alone.
| A．Of course | B．Trust me |
| C．No way | D．Not exactly |
One-third of the area _____ covered with trees. About seventy percent of the trees _____ been planted recently.
| A．is; have | B．is; has |
| C．are; have | D．are; has |
Allow children the space to voice their opinions, _____they are different from your own.
| A．as if | B．even if |
| C．in order to | D．so that |