Which is a wh-word. We use which to ask questions and to introduce relative clauses. Which as a question wordWe use which in questions as a determiner and interrogative pronoun to ask for specific information:
We use which in indirect questions and statements:
See also: Which or what?We use both which and what to ask questions. We use which when there is a restricted range of answers. We use what more commonly when the range of answers is not restricted:
Which in relative clausesWe use which in relative clauses to refer to animals and to things:
We also use which to introduce a relative clause when it refers to a whole clause or sentence:
We often use which with prepositions. Some formal styles prefer to use a preposition before which rather than to leave the preposition ‘hanging’ at the end of the sentence:
See also: Which + ofWe use of with which before other determiners (the, those, your) and pronouns (yours, them):
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来自: 紫色爆米花 > 《ENGLISH GRAMMAR》