be careful with that knife .you'll cut yourself(用if连成一句话if you _ _with that knife,you'llcut yourself.

问题描述:

be careful with that knife .you'll cut yourself(用if连成一句话if you _ _with that knife,you'll
cut yourself.

If you are not careful with that knife, you will cut yourself.

if you are not careful with that knife, you will cut yourself

if you are not careful with that knife,you'll cut yourself.^-^
如果你使用那把刀的时候不够小心,会切到自己的哦.

aren't careful