問：中文大學英文系二零一零年英文詞彙試卷有以下一題：Divide the following 12 words into four groups
with each of which composed of three words（試把以下十二字分為四組，每組三字）。這一句的which可不可改為them？
答：Which、who、whom等是關係代名詞（relative pronoun），帶出的是關係子句（relative clause），而子句須有完整動詞，例如：He had three
children, who were all well educated（他有三個孩子，都有良好教育）。
With則可帶出片語（phrase），而那片語可用分詞（participle），例如：The dictator felt helpless, with everyone rising against him（那獨裁者眾叛親離，感到孤立無援）。
讀者示下那一句，既用with帶出片語，就不應用which。那which文法上沒有「連接上文，帶出下文」的作用，所以必須改為them。而composed只是個分詞，不是完整動詞。
以下兩句，都用with each of這寫法，但第一句用with帶出片語，第二句則是用關係代名詞whom帶出子句，那with只是和動詞cohabit連用。其中分別，不可不察：（1）He distributed
the books to the children, with each of them getting at least two books（他把書本分給孩子，每個孩子至少有兩本）。（2）She fell in
love successively with a lawyer, a politician, and an artist, with each of whom
she cohabited for several years（她先後和一個律師、一個政客、一個藝術家戀愛，和各人都同住過幾年）。