Do you know the answer _______ the question. A. to B. of C. at D, in
The bridge________by the villagers last year.
They went to the church________silence.
My parents________for me to have dinner when I got back home yesterday evening.
Most people are________building a paper factory near here.They are worried the river will get polluted.
Yesterday evening I was playing the piano________the doorbell rang.A.whenB.beforeC.while