Without this year’s Nobel Prize in physics winner Charles Kao’s idea of fiber-optic（光纖的）communications, the “modern” telephone and Internet_________impossible．

A．will be         B．were to be          C．should be       D．would be

More and more people have realized that it is_______great importance to get our traditional customs passed down from generation to generation．

A．for             B．to         C．of            D．beyond

In order to ease the traffic pressure, the government tries to call upon people to make use of__  _      transportations, such as walking, biking and car-spooling．

A．a(chǎn)vailable          B．fantastic          C．contrary          D．a(chǎn)lternative

Would you please turn up the lamp a little lighter? I ______the cells through the microscope．

A．was observing                    B．have observed

C．a(chǎn)m observing                     D．have been observed

As a vegetarian and Buddhist, Arka always has a ______for vegetables and fruit．

A．perspiration         B．preference         C．prediction           D．prevention

A group of education are helping to reform the educational system in China to ensure every child will have_______to good education．

A．opportunity           B．right           C．a(chǎn)ccess          D．route

_________to go bed many times, the little boy just turned a deaf ear and fixed his eyes on the cartoons．

A．Having been urged                                  B．Being urged

C．Having urged                                         D．Urging

A dinner party will be held this Friday_______the visiting minister．

A．in charge of                            B．in face of

C．in praise of                             D．in honor of

He was careless and made many spelling mistakes in his composition．But such mistakes____．

A．could have been avoided                            B．could avoid

C．could have avoided                                  D．could be avoided

Yellow Stone National Park, ________in 1872, _________over three million visitors every year, is America’s first and foremost National Park．

A．establishing, attracted                                B．having established, attracted

C．established, attracting                           D．being established, attracting