I _____ Wang Tao in the street yesterday. We _____ each other since he went to Beijing.
In our class there are 46 students, _________ half wear glasses.
For all these years I have been working for others. I’m hoping I’ll _________ my own business some day.
Some of you may have finished Unit one. _________, you can go on with Unit two.
At the end of the eighteenth century, masks _________ completely.
We live in an age _________ more information is available with greater ease than ever before.