When I .to the party, Sally and Doug, John drinks.

  When I .to the party, Sally and Doug, John drinks.

GRAMMAR (Ngữ pháp)

Đề bài:

a. was coming / had danced / made            b. had come / danced / made

c. came / were dancing / was making           d. have come / are dancing / is making

c. came / were dancing / was making