问题
选择题
Tom is reading a book _______ his brother is watching TV. [ ]
A. while
B. though
C. however
D. but
答案
答案：A
搜题请搜索小程序“爱下问搜题”
Tom is reading a book _______ his brother is watching TV. [ ]
A. while
B. though
C. however
D. but
答案：A