(1)It is+形容词+to do It would be+形容词+to do 以上两组句型有什么区别?(2)make sure和be sure有什么区别?(3)help onself to是什么意思?
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help oneself to是随便做什么的意思。比如：can you lend me a pen?回答可以是help yourself.make sure后面可以跟to do或that从句。比如：Make sure that you close the windows.
(1)It is+形容词+to do It would be+形容词+to do 以上两组句型有什么区别?(2)make sure和be sure有什么区别?(3)help onself to是什么意思?
help oneself to是随便做什么的意思。比如：can you lend me a pen?回答可以是help yourself.make sure后面可以跟to do或that从句。比如：Make sure that you close the windows.