Mr.Green often went to Japan to see his daughter by air.(同意句改写） Mr.Green ____ to ____to
问题描述：
Mr.Green often went to Japan to see his daughter by air.(同意句改写） Mr.Green ____ to ____to
Japan to see his daughter.
答
used,fly
used表示过去常常做某事
fly表示原句中的“坐飞机”