选择题

into the hole

C. turning the stick hard for a while D. doing all the above together

28. Matches have been used _________.

A. for about two thousand years

B. for about two hundred years

C. since people began to use fire for cooking

D. since people used the heat from the sun.

29. From this passage we know _______.

A. using matches is the easiest and most useful way to make fires

B. people don’t use matches any more since they had electric fire starters

C. today there are only two ways to make fires

D. some forest fires happen from lightning

30. Choose the right order of the ways to make fires people got to know _________.

a. with a match b. from the sun c. from lightning d. by rubbing e. with an electric fire starter.

A. d ,b, c, a, e B. d, c, b, a, e C. c, d, b, a, e

D. c, b, d, a, e