Learning to care for a pet helps a child grow into an adult who feels responsible for ____dependent on him.
| A．who | B．those | C．ones | D．whoever |
__________ to go to university, we must work hard.
| A．So as | B．in order |
| C．So that | D．in order that |
The explorers were told to __________ themselves with everything they would need for the voyage.
| A．associate | B．equip |
| C．treat | D．feed |
The old teacher lay wide awake on his bed, __________ all the problems he had to deal with the next day.
| A．thought about | B．to think about |
| C．thinking about | D．having thought about |
—What kind of party is it? Need we __________?
—Yes. It's a very formal occasion.
| A．give up | B．dress up |
| C．mix up | D．turn up |
Increase the temperature of the gas and the gas will tend to __________.
| A．expand | B．spread |
| C．stretch | D．extend |