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go to the doctor.
exam/ test考试/测试
prepare for an exam
为......做准备
A: Can you come to my party?
B: Sorry, I can’t. I must …
study for a test
A: Can you play basketball with us?
B: Sorry, I can’t. I have to/must …
B: Sorry, I can’t. I have to …
meet my friends
A: Can you … ?
play soccer
A: Can you …?
B: Sorry, I can’t. I have to/must …
go to the concert
play the piano
play basketball
have the flu
play the piano
go to the doctor
help my parents
go to the concert
prepare for an exam
meet my friend
弹钢琴
准备考试
去看病
去音乐会
打篮球