几题英语,me不明白请详细地解释一下,先谢了^_^39.The full set of the book____of t

几题英语,me不明白
请详细地解释一下,先谢了^_^
39.The full set of the book____of twelve volumes.
A.is consisted B.consists C.made up D.contains
48.___such a customer as Harry,he would punish him heavily.
A.If he has met B.If he was to meet
C.If he is meeting D.Were he to meet
50.It is desired that he____everything ready by tonight.
A.will get B.would get C.will have got D.get