If you don’t know the words, you must ______in a dictionary.
| A．look it up | B．look up it |
| C．look them up | D．look up them |
While she _______ TV in the sitting room, the bell _______.
| A．watches; rings | B．was watching; rang |
| C．is watching; rang | D．was watching; was ringing |
Last night, I _______ along the street when I met my English teacher.
| A．walk | B．walked |
| C．was walking | D．am walking |
—I didn’t hear you come in at noon.
—That’s good. We tried _______ any noise. We wanted you to have a good sleep.
| A．not make | B．not making |
| C．to make not | D．not to make |
We should do everything we can _______ the birds _______ danger.
| A．to protect; away | B．protected; from |
| C．protecting; in | D．to protect; in |
At first, Luke felt a sense of cold _______ his body.
A cross B. across C. through D. by