.Jack, it’s________bad manners to blow your nose at________table.
China has made ______ clear to the world that in the course of its development it seeks for both golden, silver hills and clean water, green mountains as well.
The visitors were admiring the charming flowers ______ it started to rain.
The teacher didn’t imagine that a student good at maths ______ have failed in the exam.
— You look rather down today. —______ to board the 4:20 flight, you know, I dared not close my eyes.
Teachers should bear in mind that each student’s improvement ______.