__________ has already been pointed out, grammar is not a set of dead rules．

A．As            B．It      C．That       D．Which

―When was the house built?

   ―It was built in 1949 _______ the PRC was founded．

     A．which         B．that   C．what            D．when

Only _____, when your identity has been checked.

A. you are allowed in                                                      B. you will be allowed in

C. will you allow in                                                           D. will you be allowed in

_____ of the people working here _____ from northern part of China.

A. Two fifth; is           B. Two fifth; are                 C. Two fifths; is                  D. Two fifths; are

He is one of the students who _____ winners of scholarship for three years.

  A. is                                 B. are                                   C. have been                      D. has been

He hesitated for a moment before kicking the ball; otherwise he _____ a goal.  

  A. had scored                B. scored                             C. would score                   D. would have scored

_____ such heavy pollution already, it may now be too late to clean up the river.  

  A. Having suffered       B. Suffering                         C. To suffer                         D. Suffered

Her talent and experience _____ her to the respect of her colleagues. (2003上海)

  A. permitted                  B. qualified                          C. deserved                        D. entitled

You might just as well tell the manufacture that male customers _____ not like the design of the furniture. (

  A. must                           B. shall                                 C. may                                  D. need

Americans eat _____ vegetables per person today as they did in 1910.  

  A. more than twice      B. as twice as many                   C. twice as many as                   D. more than twice as many