Look ! It _____ be Jack on the playground.—It _____ be him .I saw him enter the school library just now.

The old man said that hewould____more people who would not have too much workto do this week to come to do the construction work.[ ]

He is a very _______ man, I suppose, but he is very dull.[ ]

Because of the rise of sea level, some islands will disappear _____ people of certain countries will have to look for new places to live

______ the trouble they were in, they still managed to help us with some money.[ ]