School children must be taught how to deal with dangerous           .

—How can I use this washing machine?—Well, just refer to the _______.

Every weekend my younger brother will go to help the old man far away my house,for which he often received some            from the old man,such as a pencil and some sugar.

. —Li Hua was in London for two years.   —It’s no ___ he can speak English so well.

The head office of the bank is in Beijing, but it has ___ all over the country.