问题补充：
We hurry because we still had a lot of time.
A. don have to
B. needn have to
C. didn need
D. didn have to
答案：
A. don have to
B. needn have to
C. didn need
(答案→)D. didn have to
解析：
试题分析:考查情态动词。根据we still had a lot of time.可知用一般过去时，排除A选项；needn’t不和have to 同时使用，故B选项错误；C选项中need是实义动词，后面应该用动词不定式to do，所以C选项错误，正确答案为D。句意：你没必要着急，因为我们还有很多时间。
