So difficult____it to acquire a large vocabulary without the help of a teacher that he was close to giving up .

sked about my plan for the future, Ihope to get a job on the local newspaper at first and ________work for"China Daily"．

How much does the ticket from Taixing to Nanjing

Don’t drop litter on the ground.—_________.

Foreign trade has been developing very fast in Guangdong.— YesGuangdong is China’s largest province ___ foreign trade volume