问题
选择题
单项选择。
They ______ the countryside and walked in the mountains. [ ]
A. explores
B. explored
C. are exploring
D. explore
答案
答案：B
搜题请搜索小程序“爱下问搜题”
单项选择。
They ______ the countryside and walked in the mountains. [ ]
A. explores
B. explored
C. are exploring
D. explore
答案：B