20.We met _____ and have become good friends since then.
When I first met Bryan I didn’t like him,but I________my mind.
It remains to be seen________the newly formed committee’s policy can be put into practice.
________one of you breaks the window will have to pay for it.
________you said at the meeting describes a bright future for the company.
From space,the earth looks blue.This is ________ about seventyone percent of its surface is covered by water.