You should speak English as ____ as possible. It’s the best way of learning a foreign language.

A big party was held in NO.18 Middle School last night, the teacher with students _____ singing and dancing happily at the party.

Congratulations! Among the best pictures in the competition, I found _________. When did you draw it?—During the trip to the Yellow Mountain _________ May.

Everyone knows that China is famous _____ the Great Wall in the world.[ ]

I believe ____________, because he is ________honest man.