He always did well at school ______ having to do part-time jobs every now and then.
| A．in spite of | B．regardless of |
| C．on account of | D．in case of |
The government is trying to ______ pollution to an even lower level so that we can have a better environment.
| A．reduce |
| B．remove |
| C．collect |
| D．warn |
At times the balance in nature is ______, resulting in a number of possibly unforeseen effects.
| A．confused |
| B．puzzled |
| C．disturbed |
| D．troubled |
Congratulation! It seemed that our boss was ______ with your work today.
| A．dishonest |
| B．confused |
| C．satisfied |
| D．disturbed |
The boy lay on his back, with his teeth ______ and his glaring eyes ______ straight upward.
| A．set; looked |
| B．set; looking |
| C．setting; looked |
| D．setting; looking |
_______ in the leg made it impossible for me to walk as fast as usual.
| A．Being injured |
| B．To be injured |
| C．Having injured |
| D．Injured |