问题

Do you have any difficulty ________

A:on listening
B:to listening
C:for listening
D:in listening

正确答案是：

同类题型

The factory which I visited yesterday was not the one Ionce worked.

A society was set up to __________ the endangered animals and plant life from dying out in this area.

matters most in learning English is enough practice.

It’s May 1st.

It is difficult for us to learn a lesson in life _____we’ve actually had that lesson