问题

The young man _____ in studying paid no attention to the outside world[ ]

A: involved
B: involving
C: to be involved
D: being involved

正确答案是：

同类题型

The police set about arresting the suspect______ they found enough evidence to prove him guilty.

______ the ancient spider’s web

TheideapuzzledmesomuchthatIstoppedforafewsecondstotryto________

Have a nice weekend!—__________________.

The purpose of her talking to me last night actually _______this: That I shall never trust him any more in future.