问题
选择题
－What _____ you doing?
－I'm _____ a book. [ ]
A. do, seeing
B. are, looking
C. do, watching
D. are, reading
答案
答案：D
搜题请搜索小程序“爱下问搜题”
－What _____ you doing?
－I'm _____ a book. [ ]
A. do, seeing
B. are, looking
C. do, watching
D. are, reading
答案：D