The Premier sinthe joint documents.

Our country ______ great changes in the last 30 years and it is no longer it used to be.

What do you think of the talk show— I can’t ______it. It’s too boring.

Modern science and technology has __________ communication between people far apart.

Dad, science is too hard for me.—Oh, dear, if you keep listening ________ in class and do enough exercises, you’ll find it easy.