John thinks it won’t be long_____he is ready for his new job.[ ]

在下面一段话的空缺处依次填入词语，最恰当的一项是恽寿平的花鸟画________北宋徐崇嗣，________了明代花鸟画中的写意法，笔触洒脱飘逸，以清秀柔丽代替了以往浓艳富丽的画风，饶有机趣，画作________。

The fact has worried many scientists _____ the earthis becoming warmer and warmer these years.

Using many symbols makes ______ to put much information on a single map

I know nothing about my neighbour _________ he is a writer. [ ]