要详解,特别是时态 1 Tower Bridge,one of Britain’s most famous landmarks,______ at the end of the 19th Century.A.built B.was built C.has built D.had been built2 Outdoor Film Festival,held in December,is the first festival in Asia ______ on cycling mountain bike documentaries and environmental protection movies.A.focused B.focusing C.to be focused D.had focused
问题描述：
要详解,特别是时态
1 Tower Bridge,one of Britain’s most famous landmarks,______ at the end of the 19th Century.
A.built B.was built C.has built D.had been built
2 Outdoor Film Festival,held in December,is the first festival in Asia ______ on cycling mountain bike documentaries and environmental protection movies.
A.focused B.focusing C.to be focused D.had focused
答