A. satisfied                                                      B. satisfactory

C. satisfy                                                      D. satisfying

10._______ most of my customers earn a moderate income, it is doubtful that I will be able to find a market for expensive furniture.

A. As                                                            B. That

C. Although                                                     D. Even though

11. There has been a _______shortage of building materials, from which the trade is not recovering.

A. nation-wide                                               B. national-wide  

C. nation wide                                                D. wide national

12. We think we can promise that the building will be ready_______ the end of August.

A. for                                                             B. by

C. to                                                             D. towards