Zheng He had over 300 ships, _______ some were over 150 meters long and could carry up to 1,000 people.

The most important thing is to keep _____ when you get into difficulties.

Do you know the difficulty he had___________his family ?

Many workers were organized to clear away ________ remained of the World Trade Center

Do you know if Miss wang ______ back tomorrow—–If she ______ back, I will call you.