—Do you like ________ here?
—Oh，yes.The air，the weather，the way of life.Everything is so nice.
| A．this | B．these | C．that | D．it |
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 |
I had great difficulty ______ the suitable food on the menu in that restaurant.
| A．find |
| B．found |
| C．to find |
| D．finding |