－Why did you arrive late?(成都市)－The fog_______ our air flight for about half an hour.

nt someone to write the composition for me.— No! It’s a rule in our school that as a student, you _______ depend on yourself.

A set of keys ____ in the library. Are they yours

There are many flights to Dalian, and the city has connections with most large cities in China, but you need to make a(an) ________ in advance.

When Zhao Benshan appeared on the stage, people______laughter. [ ]