问题
选择题
The young man _______in studying paid no attention to the outside world.
A．involved
B．involving
C．to be involved
D．being involved
答案
答案：D
考查非谓语动词。be involved in全神贯注于。在句中作定语，相当于定语从句，who is involved in，who is 省略。句意：专注于学习的那个年轻人没有注意到外面发生了什么。