It was because of the bad weather the football match had to be put off.(推迟)
A. so
B. so that
C. why
D. that
网友回答
A. so
B. so that
C. why
(答案→)D. that
解析：：考查强调句型。强调句型：It is/was 被强调成分that/who其它成分。本题强调的是because of the bad weather.句意：因为天气不好，足球赛被推迟了。故D正确。