We have no idea ________. —It’s heard that he is Mr. Green’s son.

The underlined part in the sentence “Shehas many good books.” is a/an________.

33．Unemployment is on the increaseA growing number of young people,____, are finding themselves out of work

How do you find the cake ——This cake is very sweet. You ______ a lotof sugar in it.

Have you realized the difficulty we have____ the problem