He stayed there for quite a long time, during ________ time he learned much spoken English. 

　　　difficulties we’ll meet,we must finish the work in time.

Do you have any idea ___ is actually going on in the classroom?

Much ________ he has a good taste for China’s football matches, he can’t avoid being influenced by the side effects of the football gambling.

－How do you usually find out about new software?－In the magazines like Popular Electronics. That’s______computer companies usually advertise.