— Where you last week?— I went on vocation with my parents.A.were, go B. did, go C. did, went
---The students of Class 7 are going to the seaside this weekend.---Remember _____ them not to keep _______ alone in the sea. It’s dangerous.
The twin sisters have learned a lot ________ they came to China.
--It ______ be the new headmaster.-- No, it ______ be him. He went to Beijing yesterday.
— When did your uncle arrive_______ China?— He got to Guangzhou ________ the morning of the 16th of May.
Bob never does his homework _________ Mary. He makes lots of mistakes.