27. The Grand Theatre in Shanghai is open to visitors during the daytime ______ there is a performance going on.
A.when | B.except for |
C.except when | D.Except |
相关知识点
推荐套卷
27. The Grand Theatre in Shanghai is open to visitors during the daytime ______ there is a performance going on.
A.when | B.except for |
C.except when | D.Except |