The man was noticed _______ the room secretly A.entering into B.e_英语解答

The man was noticed _______ the room secretly
A.entering into B.enter C.to enter D.to enter into

人气：331 ℃　时间：2020-01-26 02:16:39

解答

enter =go into 后面不再加介词,排除AD； be noticed to do sth.选C