but some changed seem not to be so good._____ in front of our buildings,there several rows of tall

问题描述:

but some changed seem not to be so good._____ in front of our buildings,there several rows of tall
trees with a long history.
A of course B at times C for example D such as
一定讲明原因谢谢!

C.太明显了,后面是一个例子.such as呢?也是举例的意思。such as后面加的是短语,不是句子。