He invited me to a dance after the show ________ Christmas Eve.(2009·陕西)
| A．at | B．on | C．in | D．by |
Do you know the factory, __________ products are of high quality?
| A．which | B．whose |
| C．that | D．its |
Jim passed the driving test, __________ surprised everybody in the office.
| A．what | B．that |
| C．which | D．it |
I am going to meet Tom __________ they say is a good boy.
| A．who | B．whom |
| C．whose | D．which |
Ladies and gentlemen, please fasten your seat belts. The plane __________.
| A．takes off | B．is taking off |
| C．has taken off | D．took off |
Do you know the reason __ he was late?
| A．of which | B．for that | C．for which | D．of that |