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.
答
If you are not careful with that knife, you will cut yourself.
答
if you are not careful with that knife, you will cut yourself
答
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.
答
aren't careful