---Why were you late this morning? ---I ____

试题详情及答案解析

---Why were you late this morning? ---I _____ up late to watch TV.

A．stay	B．stays
C．stayed	D．staied

答案：C

试题分析：句意：--今天早晨你为什么迟到了。--我熬夜看电视了。根据第一句可知这里叙述的熬夜发生在过去，所以应该用一般过去时，故选C。
考点：考查一般过去时。