Unit 1 Topic 3
The world has changed for the better .
Section A
---Have you_____ been to Beijing ? ---Yes, I have . I have _____ come back . ---No, I haven’t . I have _____ been there . 2. ---How long have you been in Beijing? ---I have been there there for two weeks. ---I have been there since last week.
ever
just
never


雷达卡




京公网安备 11010802022788号







