问题
选择题
Time _____ , we are going to visit the famous military museum before we leave this city.
A．permits
B．to permit
C．permitting
D．being permitted
答案
答案：C
独立主格结构Time与 permit为主谓关系用现在分词。 时间允许的话在我们离开这座城市前我们去参观军事博物馆。 选C