Have you heard of Zhai Mo ______became the first Chinese person to travel around the world in a sailboat?

I don’t like _____of the sweaters. Please show me a third one.

Sandy does not have much time to play tennis. She _____ plays tennis.

How do the students in your school go to school every day?-Most of them go to school _______the school bus.[ ]

The government of Chongqing is building ________ cheap and good houses for the people.