单选题We are sending you the samples（）requested．A beB areC asD for

( )your Enquiry No. 123, we are sending you a catalog and a sample book for your reference.

A. According

B. As per

C. As

D. About

()separate cover, we have already sent you samples () various sizes of shoes.

A、Below,of

B、Under,of

C、By,of

D、By,including

Recently, there’s been much theft in the school. What security measures shall we take then?

A.We can install cameras and set up police line for you.

B.We can install infrared surveillance cameras and intrusion alarms for you.

C.We can install alarming system for you.

D.We can equip techniques and electronic system for you.

We would appreciate your sending us a catalogue of your Rubber Boots ()with termsof payment and the largest discount you can allow us.

A、togethering

B、togethered

C、together

D、togetherness

We are () of your close co-operation by sending us a special() offer for walnutmeat.

A、appreciable,appreciable

B、appreciable,appreciative

C、appreciative

D、appreciable

E、appreciative,appreciative

We are sending you our Sales Contract No.175 ()duplicate

A、with

B、in

C、to

D、for

阅读理解：阅读下面的对话，选择合适的内容将对话补充完整。

Dear Sirs,

Account No.8756

1.{A;B;C;D;E}

2.{A;B;C;D;E}

3.{A;B;C;D;E}

4.{A;B;C;D;E}

5.{A;B;C;D;E}

A、Your prompt attention to this matter would be greatly appreciated.If you have any questions regarding this account, please contact our office as soon as possible.

B、Regards,

Lily

C、Please note that your account No.8756 was already a month overdue.As you are usually very prompt in settling your accounts, we wonder whether there is any special reason.

D、If payment has recently been made, please accept our thanks and ignore this reminder.

E、We think you may not have received the statement of account we sent you on August 30 showing the balance of US$ 80,000 you owe.We are sending you a copy and hope it may have your early attention.

What are we going to do _______ the thief? Sending him to prison?

A: for

B: by

C: with

D: without

A、for

B、at

C、on

D、to