You have a backache. You shouldn't ........................
carry heavy things
Why shouldn't I run down the stairs?
Because you may break your leg.
Don't ...........................
Why shouldn't I climb the tree?
Because you may break your arm.
You should .........................
take a rest
Why shouldn't I play with the knife?
Because you may cut yourself.
Why shouldn't I touch the stove?
Because you may get a burn.
Don't ....................!
run down the stairs
Don't ............................!
play with matches
Why shouldn't I ride my bike too fast?
Because you may fall off your bike.