＿＿＿buy your ticket from a ticket machine. There are lots of people there.A. Not B. not too

问题补充：

＿＿＿buy your ticket from a ticket machine. There are lots of people there.

A. Not

B. not too

C. Don’t

D. Don’t to

答案：

A. Not

B. not too

(答案→)C. Don’t

D. Don’t to

解析：特殊句式。祈使句的否定形式是在句子前面加don’t，故答案为C。