Who did the teacher have ___ an article for the wall newspaper just now?

This exercise is ________ difficult _________ .

it’s ________bad manners to blow your nose at ______ table

The Hanjiang River is the _______ river in Guangdong Province. –But it is _______ shorter than the Zhujiang River.

It was fine yesterday so I ______ the trouble to carrymy raincoat with me.