英语单选Please----------thatyouhaveyourdoorslockedwhengoingout;manypeoplehavereportedburglaryrecently.[A.makesure][B.besure][C.becertain][D.makesureof]答案选A,从语法结构方面该怎么区分这四个选项,从含

Question

英语单选
【Please----------that you have your doors locked when going out;many people have reported burglary recently.[A.make sure][B.be sure][C.be certain][D.make sure of]】答案选A,从语法结构方面该怎么区分这四个选项,从含义方面又该怎么理解?

Answer 1

首先,这四个选项都有确信,确定,肯定的意思,但是又有些细微的区别,make sure 含有要check 即检查一下之后再确定的意思,而be sure 和 be certain 这两个没什么差别,就是对某件事情很肯定的意思,至于make sure of 后面...