.Most of his savings ______ in the Xin Hua Bank

I ______ have turned on the air conditioner at such a low temperature.— No wonder you’ve got a cold.[ ]

They talked for about an hour of things and persons ________ they remembered in the school.

At the railway station, the mother waved goodbye to her daughter until the train was ___.

If you don’t communicate your ideas ______ others, how can they understand you?[ ]