10.We would appreciate              us a bid for the construction project. 【      】

A. you send                              B. your sending   

C. you to send                            D. of your sending

11.We would like to know              you can guarantee delivery within one month after receipt of order. 【      】

A. and                                   B. if      

C. then                                  D. which

12.Of all the books mentioned in the booklist none             available recently. 【      】

A. is                                     B. has been   

C. are                                   D. have

13.Please be              to send us the within the       next week. 【      】

A. good enough … amount due               B. enough good … due amount

C. good enough … due amount               D. enough good … amount due

14.As your complaint does not              the result of our own test, we hope you can conduct another examination to show if there is any ground for claim.