When I ___ to the party, Tom and David_, John ___.

A. was coming/ had danced/ singing

B. had come/ danced/sang

C. came/ were dancing/ was singing

D. have come/ are dancing/ is singing

Đáp án
C. came/ were dancing/ was singing

Câu hỏi thuộc Bài tập:

When I _____ to the party, Tom and David_____, John _____.