________ we know, the moon goes around the sun.
So difficult ______ it to live in an English-speaking country that I determined to learn English.
For a moment nothing happened. Then ______all shouting together.
At the meeting, the people were _____by the kindness and natural beauty of his mother although there is a scar in her face.
The teacher stressed again that the students should not _____ any important details while retelling the story.
If it is quite ________ to you, I will visit you next Tuesday.