Once your business becomes international,________ constantly will_英语解答

Once your business becomes international,________ constantly will be part of your life.(Unit3-5)
为什么用flying不用flight?请分析一下句型或语法.
可是我认为这里缺主语,constantly应该修饰will be part of这里面的动词.

人气：402 ℃　时间：2020-04-06 07:04:23

解答

看到constantly吗副词修饰形容词和动词
前面显然不能用名词flight
当然flying也有名词的意思
但是这句话是动词ing作主语的形式