英语有些智力问题,回答多少算多少吧.要说为什么.Study the following,then add the las

英语有些智力问题,
回答多少算多少吧.要说为什么.
Study the following,then add the last word in each line:
(a)Fox-ox,then-hen,this-________
(b)Hams-sham,harps-sharp,train______
(c)West-wets,nest-nets,best-__________
What tree comes in twos?_______.
What animals are always with you?____________________
What is twice a half of five and a half?_______
要说为什么!