问题
选择题
—What's Carol doing?
—She's busy ______ letters. [ ]
A. writing
B. write
C. wrote
D. to write
答案
答案：A
搜题请搜索小程序“爱下问搜题”
—What's Carol doing?
—She's busy ______ letters. [ ]
A. writing
B. write
C. wrote
D. to write
答案：A