Mr.Jack flew ____New York on Firday(填空介词,为什么?)

问题描述:

Mr.Jack flew ____New York on Firday(填空介词,为什么?)
They are leaving____France today(填空介词,为什么?)请各抒己见.

Mr.Jack flew to New York on Firday.
They are leaving for France today.
第一句是因为to是去的意思,全句是JACK先生昨天飞去NEW YORK
第二句是他们准备去,现在还没去所以用for