It was not very warm ______ the sun came out.
While she _______ TV in the sitting room, the bell _______.
Last night, I _______ along the street when I met my English teacher.
—I didn’t hear you come in at noon.—That’s good. We tried _______ any noise. We wanted you to have a good sleep.
We should do everything we can _______ the birds _______ danger.
At first, Luke felt a sense of cold _______ his body. A cross B. across C. through D. by