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Earlytobedandearlytoriseagoodhabit.A.areB.isC.wereD.was

题目详情
Early to bed and early to rise________ a good habit.
A. are
B. is
C. were
D. was
▼优质解答
答案和解析
答案B
early to bed early to rise应看做是一种习惯,作单数.