it rained heavily this morning nobody in our class missed the lesson.A. Even thoughB. Un

问题补充：

it rained heavily this morning, nobody in our class missed the lesson.

A. Even though

B. Until

C. Ever since

D. Because

答案：

(答案→)A. Even though

B. Until

C. Ever since

D. Because

解析：Even though虽然，即使；Until直到；Ever since从那时到现在；Because因为。句意：尽管今天上午雨下得很大，我们班没有人不来上课。结合语境可知选A。