April 21 was the national memorial day ____ were killed in Yushu Earthquake on April 14 2010.A in honor of any one who B in celebration of those whoC in memory of whoever D in charge of no matter who
The number of pages in this dictionary ________ about two thousand.
Now Tom with his classmates ________ football on the playground.
Half of the workers here ________ under 30 ________.
Political parties often differ in their views on various _____ concerning their own countries.
About 60 percent of the students ________ from the south,the rest of them ________ from the north and foreign countries.