The businessman __________ a lot of money to the hospital, which was helpful to the development of it.[ ]

Hello，Jane，have you arrived at the hotel?—–Yeah，busy.I’ll call back later.

Today, ______ rapid development of transportation and communication, the whole world seems to be smaller.

I___there little more than a week when I set to work with the scientist

study lost in thought for a long time, I suddenly realizedthat nothing in the world remains.