He called the police for help,       that the problem was more than he could deal with.

  A．having been realized         B．realizing    C．realized          D．had realized

 ____ its size with that of the whole earth, we find the highest mountain does not seem high at all.

A. When compared                B. Compared to          

C. To be compared             D. Comparing

The bell _______ the end of the period rang, _______ our heated discussion. 

A. indicating; interrupting             B. indicated; interrupting

C. indicating; interrupted                  D. indicated; interrupted

Have you heard of it? Firefighters rushed into a burning house, three of them unfortunately _______ in and ________ their lives.

A. catching; lost               B. caught; lost   

C. caught; losing                D. catching; losing

The traffic problems we are looking forward to seeing _________ should have attracted the government’s attention.

A. solving           B. solve         C. solved           D. to solve

On the bank of the river, we found him ______ on a beach, with his eyes _______ on a kite in the sky.

A. seated; fixing             B. sitting; fixing      

C. seated; being fixed    D. sitting; fixed

This is the third book that he has written in the past five years, the first of _______ I really enjoyed.

A. which              B. that              C. those         D. them

The beginning of the movie is impressive,________ is the ending, which leaves us to think.

A. what           B. which               C. as                  D. like

She may have missed the train, _______ she won’t arrive for another hour.

A. in which            B. when             

C. in which case         D. in that case 

 Premier Wen Jiabao will visit the city in October, ______ he will open the new bridge.

A. which   B. when       C. then    D. so