给首字母,补全句子.

问题描述:

给首字母,补全句子.
Shanghai is a big city in C____.I think it's much b____ than my hometomn.And it's a modern city w____ many tall b____.
半小时之内!我马上要做作业了!

Shanghai is a big city in C_hina___.I think it's much b__igger__ than my hometomn.And it's a modern city w_ith___ many tall b_uiltings___.