Four and ________ half hours of discussion took us up to midnight, and ________ break for cheese, chocolate and tea with sugar.
| A．a; a |
| B．the; the |
| C．/; the |
| D．A; / |
The doctors insisted that the patient was in danger, and that he __________on immediately.
| A．was operated | B．be operated | C．should operate | D．operated |
----Travelling helps us understand life better.
---- ___________.
| A．Actually | B．Exactly | C．Gradually | D．Especially |
Ladies and gentlemen, please fasten your seat belt. The plane __________.
| A．takes off | B．is taking off | C．has taken off | D．took off |
________ you have a large vocabulary, you will find it easy to read.
| A．Once | B．Before | C．Unless | D．Even though |
________ you met the foreigner from Canada?
A. Where it was thatB Who it was that
C. Where was it thatD. Where was that