造句:be bad at sth be busy doing be busy with sth be excited about sth
问题描述：
造句:be bad at sth be busy doing be busy with sth be excited about sth
还有be good at sth be good for sb be late for sth
be made of sth be ready to do sth become interested in
答
He is good at math,so he always does well in the math exams.He is very kind and he is very good for everyone.I'm sorry.I'm late for school.The desk is made of wood.We are ready to have a walk now.Afte...