—Sam, come downstairs, please. I need your help.
—Sorry，mum. I on the phone..
| A．am talking | B．talked |
| C．was talking | D．have talked |
Many _____ in ______ could hear no better than 65-year-old people, for they like pop music.
| A．adults, the USA | B．adults; England |
| C．teenagers: the USA | D．teenagers: England |
Mr. and Mrs. Green work in the hospital, but they have no children. So they belong to _____.
| A．extended family | B．nuclear family | C．DINK family | D．celibatarianger |
_____ is a program to help children’s education in poor areas.
| A．Project Hope | B．Edmonton Community Service |
| C．Kids in the hall | D．China Greener |
About _____ of the world population is Chinese.
| A．one third | B．one fourth | C．one fifth | D．one sixth |
We should plant more trees on sides of the street.
| A．either | B．both | C．all | D．each |