问题补充:
- Who’s the handsome boy talking with our English teacher over there?
- A boy Justin. He is our monitor.
A. calls
B. calling
C. called
D. is called
答案:
A. calls
(答案→)B. calling
C. called
D. is called
解析:本题考查非谓语动词.现在分词作定语。A boy calling Justin自称叫Justin的男孩。