The houses . They will be finished next year.
A. are built
B. have been built
C. are being built
D. were built
网友回答
A. are built
B. have been built
(答案→)C. are being built
D. were built
解析：
这题考查时态语态的用法：从They will be finished next year.“他们明年将完工”说明这些房子是正在被建。选C。