I ________ when the UFO landed.
A. am watching TV B. was watching TV
C. have watched TV D. watched TV
I have two brothers. One is a teacher, _________ is a doctor.
A. another B. other C. others D. the other
I _________ $300 for the bike.
A. took B. spent C. cost D. paid
There are many _______ playing on the playground.
A. child B. children C. man teachers D. sheeps
A horse is _______ useful animal.
A. a B. an C. the D. /
—Nice to meet you.
—________.
A. Fine，thank you. B. How do you do?
C. Nice to meet you, too. D. The same to you.
