We live in a world that is changing fast, one        changes come at what seems to be an ever-increasing pace.

         A．Unless                      B．Once                         C．Whether                  D．Although

       I’m into the video game, it’s hard to think of anything else. All my focus is on finishing the story line.

         A．Unless                      B．Once                         C．Whether                  D．Although

With the country’s population increasing to 1.3 billion, many of China’s rivers, including the legendary Yellow River,       .

         A．is drying up             B．will be drying up    C．had dried up           D．are drying up

The manner in which a telephone is answered gives the image of the organization, so     

polite and pleasant when answering the telephone.

         A．being                        B．be                              C．to be                         D．having been

The plane must be ready within half an hour. There should be no           in sending the blood and medicine to the injured people.

         A．hurry                         B．delay                         C．time                          D  ．wait

The stone under her feet rolled; and as she was        into the river, she called out for help.

         A．being jumped         B．jumped                     C．pulling                      D．being pulled

Please come and help me with this application from because I don’t know how to        it.

         A．set about                 B．set out                     C．set up                       D．set aside

It’s all       , isn’t? someone who is poor in this country might be considered well off in another.

         A．relative                    B．related                     C．relation                    D．relationship

Whatever the cause of the heat may be, we do know that the earth gets hotter       down we dig.

         A．further                     B．the farther              C．the farthest            D．the furthest

So difficult         it to live in an English-speaking country that I determined to learn English well.

         A．I have felt                B．have I felt                C．I did feel                   D．did I feel