问题
选择题
—What are you busy______?
—I'm busy______ to the radio. [ ]
A. doing, listening
B. do, listening
C. to do, listens
D. on. listening
答案
答案：A
搜题请搜索小程序“爱下问搜题”
—What are you busy______?
—I'm busy______ to the radio. [ ]
A. doing, listening
B. do, listening
C. to do, listens
D. on. listening
答案：A