问题

Though the professor tried his best to explain the difficult question, the students still looked _____. [ ]

A: confusing
B: being confused
C: to confuse
D: confused

正确答案是：

同类题型

Don’t turn on the radio __________ your mother allows you.

He seems _______nice.

He was accused _____taking ______drugs when he was at school , so he was questioned by the police

My money is not the only thing ______ is missing.

Being a _________ person, Mrs Li wouldn’t let anyone or any difficulty stop her.