21£®It’s good feeling for people to admire the shanghai world expo that gives them pleasure£®
A£®²»Ìa B£®a,²»Ìî C£®the , a D£®a, the
22 £®We give dogs time, space and love we can spare, and _____, dogs give us their all£®
A£®in all B£®in fact C£®in short D£®in return
23£®——volunteering is becoming popular in China £®
——yeah, people are now aware that helping others is helping themselves£®
A£®naturally B£®increasingly
C£®splendidly D£®successfully