问题
选择题
—Have they visited the zoo many times.
—______________. Only once.
A. Yes, they have B. No, they haven’t C. No, they have
答案
：B
：此题重点考查现在完成时的简略回答，根据答语可知应用否定性回答。
搜题请搜索小程序“爱下问搜题”
—Have they visited the zoo many times.
—______________. Only once.
A. Yes, they have B. No, they haven’t C. No, they have
：B
：此题重点考查现在完成时的简略回答，根据答语可知应用否定性回答。