11. It is a ______ idea—building a Holiday Inn on the Mars.

A.novel                                                            B.abnormal

C.ordinary                                                        D.odd

12. According to Stephen Hawking, nothing is perpectual in the universe. Even stars are ______and will die some day.

A.permanent                                                     B.immortal

C.deadly                                                           D.mortal

13. The new city, Brasilia, ______ Rio de Janeiro as the capital of Brazil in 1960.

A.replaced                                                        B.supplanted

C.displaced                                                       D.is to put off

14. We are all for your proposal that the meeting of the board ______.

A.be put off                                                      B.was put off

C.should put off                                                D.is to put off

15. When we want to analyze and solve contradictions, we should realize that a ______must be made between the primary and secondary contradictions.

A.variation                                                        B.distinction

C.differentiation                                                D.divergence

16. ______ good weather, our cargo ship will reach Florida next Friday morning.

A.Assuming                                                      B.Supposing

C.If                                                                 D.Given

17. It is our hope to have enquiries for ______ articles after the samples are examined by you.

A.special                                                          B.specific

C.clear                                                             D.exact

18. These goods are ______ for export, though a few of them may be sold on the domestic market.

A.essentially                                                      B.completely

C.remarkable                                                    D.necessarily

19. Don’t ______ his silence for lack of interest, though he is a man of few words.

A.mislead                                                         B.misunderstand

C.mistake                                                         D.mix

20. Demand for a consumer product depends on the incomes of buyers, their subjective preferences, and ______.

A.competing proucts are priced

B.the prices of competing products

C.what are the competing products’ prices

D.how high the prices of competing products