Tom is a middle school student. How old is he? ____________. [ ]A. The th

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Tom is a middle school student. How old is he? ____________. [ ]
A. The thirteen
B. Thirteenth
C. Thirty
D. Thirteen

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举一反三

There are usually ________ days in February. [ ]
A. twenty-eight
B. twenty-nine
C. thirty
D. thirty-one

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The boy is _____. Today is his _____ birthday.[ ]
A. twelfth; twelfth
B. twelve; twelfth
C. twelfth; twelve
D. twelve; twelve

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We read $ 20 as _____. [ ]
A. twenty dollar
B. twenty dollars
C. dollar twenty
D. dollars twenty

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—How much does it cost to build the school library?
—Four      yuan .       [     ]
A. million
B. millions
C. millions of
D. million of

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Now children, turn to page _____ and look at the _____ picture in Lesson Two.[ ]
A. twentieth; one
B. twenty; one
C. twenty; first

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