________ your friend like English? [ ]
A. Does
B. Do
C. Is
D. Has
答案：A
— Do you know the man _____ is talking with Mr Wang?
— Sure. That's Mr Li, our new English teacher. [ ]
A. he
B. who
C. whom
高光强障碍物灯特性必须是（）闪光灯，它通常安装在无线电天线塔、电视天线塔、烟囱和冷却塔之类的高建筑上。标志这些建筑物时，灯是同时闪光的。
