Silence, please. I can’t do my homework ______.
(2013·辽宁卷)To her joy,Della earned first the trust of her students and of her collegues.
At our factory there are a few machines similar to _______ described in this magazine.
The traffic on the main streets has a longer green signal than _______ on the small ones.
I’ve lived in New York and Chicago, but don’t like ____ of them very much.
There are a small number of people involved, possibly ______twenty.