.–What made her so sad ?
--- ___ she failed in the exam.
| A．That | B．Because | C．As | D．Since |
For the citizens of the world’s poorest nations, the future ______ never arrive soon enough.
| A．must | B．should | C．may | D．Can |
All his hard work ______. He was admitted into one of the best universities.
| A．turned up | B．paid off | C．put off | D．turned out |
Junyan added that as a reporter she needed many different skills and ______ to learn new things.
| A．was constantly challenged | B．constantly challenged |
| C．was constantly challenging | D．had constantly challenged |
—Hi, Dr Brown! I'm a little early. Should I wait outside?
—No. ________.
| A．That's right | B．My pleasure |
| C．Come on in | D．Take it easy |
China Today attracts a worldwide readership,_______ shows that more and more people all over the world want to learn about China.
| A．who | B．whom | C．that | D．Which |