问题

Many studentspreparing for the midterm examination

A:are engaging in
B:are engaging themselves
C:are engaging themselves
D:are engaged in

正确答案是：

同类题型

heir market share shrinking, analysts ______that their profits have fallen by around 15%

Which of the following underlined parts is different in pronunciation from others

They want to do it better with_______ people and_______ money

Was ______ Bill, ______ played basketball very well, ______ helped the blind man cross the road—Yes, of course. He is always ready to help others.

Hello, Jack! How are you doing — _________.