.Just as I was leaving the classroom, it ________ to me that I forgot to turn the lights off.

I think the house is____ large for a family of four people and the price is very reasonable

__________ big news ! Tu was awarded the Nobel Prize for discovering artemisinin. — Really exciting!

John is very lazy. He falls ______ behind among thestudents.

If youtalk about it with me,please wait till I finish my work at hand.