Dale is a clerk of a bookstore．Here is the note from his boss，John．Dale has to decide what books to order according to the following note and the descriptions of the books．

Hi Dale，

You must hand in the order list of books to me by the first working day of every month．The rules for choosing books are：

For textbooks：

●August is coming．We must choose all textbooks，without thinking of other rules．

For books which are not textbooks：

●If more than five copies of books were sold last month，we choose them．But if there are five copies or more in stock，we do not make an order．

●If the wholesale prices of the books are higher than＄75，we do not choose them．And we do not order anything whose retail price is higher than＄100．

John

The descriptions of the books

Title：Homeland English Publisher：Homeland Ltd Wholesale price：＄110 Retail price：＄130 Textbook：Yes Copies sold last month：3 Copies in stock：2	Title：How to Become Successful Publisher：Founders Company Ltd Wholesale price：＄30 Retail price：45 Textbook：No Copies sold last month：2 Copies in stock：3
Title：Biology at a Glance Publisher：New Times Publishing Ltd Wholesale price：＄65 Retail price：＄90 Textbook：No Copies sold last month：17 Copies in stock：2	Title：Good Health in 20 Days Publisher：Oscar World Ltd Wholesale price：＄76 Retail price：＄85 Textbook：No Copies sold last month：3 Copies in stock：2

68．What must Dale hand in to his boss the first working day of each month？ 　　

A．	The description of the books．
B．	Some copies of books．
C．	The rules for choosing books．
D．	The order list of books．

69．Which book must be chosen without thinking of other rules？ 　　

A．	Homeland English．
B．	How to Become Successful．
C．	Biology at a Glance．
D．	Good Health in 20 Days．

70．If Dale wants to order the books about biology，he should order them from 　　

A．	Homeland Ltd
B．	Founders Company Ltd
C．	New Times Publishing Ltd
D．	Oscar World Ltd

71．____ kinds of books'wholesale prices are lower than 75 dollars and____kinds of books'retail prices are lower than 100 dollars． 　　

A．	Three；two
B．	Two；three
C．	Three； three
D．	Two；two

72．Why can't Dale order How to Become Successful？ 　　

A．	Because its retail price too high．
B．	Because its wholesale price is too low．
C．	Because the copies in stock are fewer than 5．
D．	Because the copies sold last month are not over 5．