they can be used to greet 英文問題

they can be used to greet a friend or relative


1 個解答

  • 8 年前


    "be used to" is in passive voice, so "to" is not a preposition, but uses with "be used" to form an infinitive. It means "過去曾經如何如何"

    However, if you use it this way:

    He is not used to walking for a long distances.

    in the above sentence, "to" is a preposition, so you will following with

    noun, pronoun, or noun equilibrium (such as V-ing,...), it means "習慣於


    2012-06-13 22:33:50 補充:

    I just found that this kind of question was answered very nicely at:

    2012-06-14 01:35:52 補充:

    If your sentence is written as:

    They are used to greeting a friend and relative.

    then you will use "greeting".

    2012-06-14 01:38:48 補充:

    However, your questioned sentence uses "can be used to greet". It means "something are used to greet". In Chinese "它們可以被用來迎接朋友或親戚".

    2012-06-14 01:39:26 補充:

    In the above case, "to" is to form infinitive, like "to greet", not a preposition.

    2012-06-14 01:42:54 補充:

    Of course, if in the sentence "they are used to greeting a friend or relative", "are used to" means "被用來", then you still need to follow with V, not V-ing. To precisely determine the function of "to", you need to have the context and the feeling of English.

    2012-06-14 01:43:41 補充:

    Telling you all these rules without the context and the feeling, you might get even more confused.

    2012-06-14 01:45:29 補充:

    The only way to get it right is to practice and read more.

    參考資料: self