We were swimming in the lake _____ suddenly the storm started.
| A．when | B．while | C．until | D．before |
I had great difficulty __________ the suitable food on the menu in that restaurant.
| A．find |
| B．found |
| C．to find |
| D．finding |
-Can I help you, Madam?
-Yes. I want a tie __________ for a man to wear at a formal party.
| A．flexible |
| B．aggressive |
| C．appropriate |
| D．illegal |
The accused man __________ himself by saying that he killed the man totally out of self-defense and it was completely an accident.
| A．guarded |
| B．protected |
| C．defended |
| D．prevented |
I like walking in the garden on summer afternoons, for the flowers there __________ sweet smell.
| A．give in |
| B．give away |
| C．give out |
| D．give up |
The number of people invited to the party was 100，but a number of them were absent for __________ reasons.
| A．much |
| B．a great deal of |
| C．a variety of |
| D．a large amount of |