20.Which sentence uses the hyphen correctly?
(A) There are thirty six year-olds in Mrs. Thompson’s class.
(B) There are thirty six-year-olds in Mrs. Thompson’s class.
(C) There are thirty-six year olds in Mrs. Thompson’s class.
(D) There are thirty-six-year-olds in Mrs. Thompson’s class.
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統計: A(2), B(24), C(16), D(6), E(0) #1307896
統計: A(2), B(24), C(16), D(6), E(0) #1307896