Question

--What a dean and bright classroom， isn’t it？

--Yes，it’s always clean and bright because it 　　　 every day．

　 A． cleans　　　　 B． cleaned　 　　　C． is cleaned　　　 D． was cleaned

Answer 1

答案C

解析：根據(jù)句意，教室干凈整潔是因為它每天被打掃，故用被動語態(tài)，又因every day是一般現(xiàn)在時的標(biāo)志，故答案選Ｃ。