They put off the meeting because of the heavy rain.（同义句）
They put off the meeting because the rain was heavy.
因为这场大雨,他们推迟了会议.
because引导状语从句,because of后则接短语.谢谢！一块在问你一道题：Maybe a man is riding a horse.(改写同义句）It _____________ a man ________ a horse.