On April 14, 2010, many people dressed in black with white flowers ______ their chests observed three minutes of silence in memory of the victims in Yushu Earthquake .

A. pinned in           B. pinned to        C. being pinned in      D. to be pinned to

With so many orphans _______, the charity organization calls for more donations.

A. to look after             B. being looked after     C. to be looked after D. looked after

Our community appears more beautiful with green grass and colourful flowers ____ here and there.

A. grow                B. to grow             C. growing            D. having grown

--- Be careful! Don’t forget you are on a ladder.

   --- But you are holding it for me, nothing         .

       A．worry about     B．to worry about C．is worried about      D．worrying about

China will build 16,000 km of high-speed railway by 2020, with trains _______ 350 km/h.

A. running as fast as     B. run as fast as      C. runs as quickly as      D. run as quickly as

There are 3000 workers in the company, with young women from the country ______ the largest part.

A. playing                   B. making up         C. doing up                        D．performing

______, we had no choice but to stand.

A. There was no seats                                     B. There being no seats

C. The seats were occupied                        D. There had been no seats

Weather _______, we will have a picnic tomorrow.

 A. permit       B. permits        C. permitted      D. permitting

With food, water and electricity ________, the villagers suffered a lot after the earthquake.

A. cut down                    B. cut up               C. cut off             D. cut in

He sat there with his attention          the wonderful view of the city.

   A. focusing on     B. focusing in    C. focused in     D. focused on