Ladies and gentlemen, please fasten your seat belts. The plane _______.
| A．takes off | B．is taking off |
| C．has taken off | D．took off |
All of us were so excited at the news ______ we would be sent abroad to study for two years ______ we jumped with joy.
| A． what； what | B．that； that | C． that； what | D．what； that |
The hotel is going to employ an assistant with ______ knowledge of French and ______ experience of management.
| A．不填； an | B．the；the | C． a； an | D．a；不填 |
When ______, the new railway will run for 250 miles.
| A．to complete | B．completed |
| C．being completed | D．to be completed |
It was really noisy in the workshop. Not until ______ at the top of my voice ______ to look at me.
| A．did I shout; he turned | B．had I shouted; had he turned |
| C．did I shout; did he turn | D．had I shouted; he turns |
______ the warning message, more visitors might have been trapped in the flood.
| A．Apart from | B．Regardless of | C．Other than | D．But for |