The first period usually begins _____________.( ) A: between10 and 16 years of age B: between 12 and15 years of age C: between 15 and 16 years of age D: between 10 and 12 years of age

We specialize in this field for 12 years

For how long had Mr. Smith been taking money A: 2 years B: 12 years C: 5 years D: 8 years

When you are considering colleges, you usually have already studied for______. A: 8 years B: 10 years C: 9 years D: 12 years

Ages of these patients ( ) from 12 to 65 years for group A and from 3 to 54 years for group B.

All American children are offered 12 years of compulsory public education.

In the traditional Chinese calendric system, years are designated by _______ Heavenly Stems and _________ Earthly Branches. A: 12; 10 B: 10; 12 C: 10; 10 D: 12; 12

The 12 years of primary and secondary schooling may also be completed outside the USA.( )

“Wespecializeinthisfieldfor12years,withthestrengthofproducingsneakers,whicharesuperiorqualitywithcompetitiveprice.” Thissentencecanbetranslatedas:我们在此行业已经营12年，我们生产的运动鞋物美价廉

Conversation One When did the “big bang” occur A: No one knows. B: 12 billion years ago. C: 20 billion years ago.