1) climb; 2) matches; 3) fall; 4) cut; 5) burn
1) matter; 2) hot; 3) fever; 4) headache
1) don't ride your bike too fast.
2) what are you doing with the stove?
4) I have a toothache. you must go to the dentist
5) don't play with the cat
3) don't play with the matches. Ok, I won't
6) what is the matter with you? I have a stomachache