What is the tense and aspect of the following sentence?I was sitting in the classroom.
A.simple past
B.past progressive
C.past perfective
D.past perfective progressive
正确答案:past progressive
What is the tense and aspect of the following sentence?I was sitting in the classroom.
A.simple past
B.past progressive
C.past perfective
D.past perfective progressive
正确答案:past progressive