The backpack is_____ sale_____ only fifteen yuan.
| A．on; at | B．for; in |
| C．at; for | D．on; for |
Beth _____ unhappy because he failed the English exam.
| A．sees | B．watches |
| C．looks | D．looks at |
The customers are pleased with the______of the restaurant.
| A．balance | B．experience | C．surface | D．service |
I try to make myself ____,so I speak aloud.
| A．hear | B．to hear | C．heard | D．hearing |
.The boy __in the teacher’s office was found _ yesterday .
| A．standing, smoke | B．standing, smoking |
| C．stood, smoke | D．stood, smoking |
Only when the work is done ________ be able to go back home.
| A．you have | B．you will |
| C．will you | D．have you |