please _____careful ! A be B is C /

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please _____careful ! A be B is C /

please _____careful ! A be B is C /
please _____careful ! A be B is C /


please _____careful ! A be B is C /
be
这是祈使句,用动词原形

A。祈使句，要用动词原形，所以用be动词原形Be。
祝进步

A
be careful是固定搭配，意为“小心”，全句意思是“请小心”

please _____careful ！
A be B is C /
本题选【A】这是考得祈使句。
祈使句一般用动词原形开头，省略主语
am/is/are的动词原形是be所有选A

please _____careful ! A be B is C / (22)_____careful we are,___mistakes we will make ( ) _____careful when you go out. A.To be B.Be C.Being D.Are please please. please. please please! please please～ please, please~ please please. please please please please!