The ages of the students in my class（) from seventeen to twenty.A takeB rangeC giveD att

My father retired at the age of 60.（英译中)

Of my three students, one is from England, （)are from London.A．the otherB．the othersC．an

In UK the students at the age of 16, who want to receive further education, must takeA．GRE

The combined age of a group of people is the sum of the ages of all of the people in the

In the next 40 years the percentage of people in the United States over the age of

This type of desk and chair can be adjusted______the height of students at different ages.