21、— Do you know the tower _____ in the heart of the city?

— Do you mean the one _____ to the north of the city library?

A．locating; lay                                       B．located; lying

C．being located; lying                                    D．located; lay

20、— ____ visited the Shanghai World Expo is sure to tell you the place is worthy ____ twice．

— You can say that again．

A．Those who have; visiting                       B．Whoever has; visiting

C．Those who have; to be visited               D．Whoever has; to be visited

19、— No one can answer the question _______ we can complete the task in time, do you know?

— Yes, and this is because we don’t know the way _______ the scientist used last time．

A．whether; which                             B．if; which

C．whether; in which                             D．if; in which

18、—Two hundred of the tourists were saved from danger in Taiwan, but the rest ______ still missing．

— If only the travel agency ________ more measures to prevent such accidents．

A．is; has taken                                 B．are; had taken

C．is; took                                        D．are; would take

17、一When shall we start the restoration of the historic buildings?

一Not until our plan________ by the committee．

A．will be approved                                   B．approves

C．is to approve                                        D．has been approved

16、Ancient Greeks were responsible for many of the _______ in science and other fields．

A．advances                                          B．progress

C．development                                      D．civilization

15、The man should be excused because he caused the damage _______．

A．deliberately                          B．unintentionally

C．meaningfully                            D．determinedly

14、Another group of Qing Tombs sits about 100 kilometres ______ of Beijing．

A．at the west                        B．the west

C．to west                                    D．west

13、— Hi, Tom．Any idea where Mary is?

— She                      in the reading room．I saw her there just now．

A．shall be                                            B．should have been

C．should be                                          D．might have been

12、— Chinese Premier Wen put great pressure on the Japanese side, otherwise the boat captain ___________．

— As the saying goes, he who hasn’t seen the coffin （棺材） won’t cry．

A．wouldn’t be released                                    B．hadn’t been released

C．wouldn’t have been released                    D．should have been released