问题
选择题
－Can you tell me how many colours ______ in a rainbow?
－Seven.[ ]
A. there are
B. are there
C. they are
D. are they
答案
答案：A
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－Can you tell me how many colours ______ in a rainbow?
－Seven.[ ]
A. there are
B. are there
C. they are
D. are they
答案：A