1. __________ singer and ___________ dancer is also good at drawing.
A. The; a B. The; the C. A; a D. The; /
2. Ladies and gentlemen, please fasten your seat belts. The plane ________.
A: takes off B: is taking off C: has taken off D: took off
3. –Are you a teacher?
--No, but I ________.
A. used to B. was used to C. used to be D. used to do