You are so __________ your car.
| A．silly not have locked |
| B．silly not to have lock |
| C．silly not to have locked |
| D．silly not to lock |
-----What did you do with the order?
----- I handed it to _____ I think is in charge of sales.
| A．whoever | B．whomever | C．who | D．whom |
Sonny is often late for school, and makes her teacher very angry.
| A．it | B．she | C．which | D．who |
Friendship helps us understandwe are, we need each other andwe can do for each other.
| A．what; why; how | B．who; how; what |
| C．who; what; why | D．who; why; what |
People who seldom do sports or ________ diet is high in fat will put on weight quickly.
| A．who | B．whose | C．which | D．what |
more effectively with others, more and more people equip themselves with a higher education.
| A．To compete | B．Being competed |
| C．Competing | D．Competed |