____ old man behind Mary is _____ university teacher.

Some young people in America are expected to leave ______ could be life’s most important decision—marriage— entirely up to luck.

If you have finished your homework, you could _____ cleaning and cooking.[ ]

.—LiAn, a Chinese director, won the best director again in his_______. —How great he is. It is his ______ time to win an Oscar.

Have you found your watch? —No, it is ______to see anything in the hole.