We consider ____ absolutely necessary that we should open our door to the outside world.

Please remember to turn off the lights when you ______.—Sure. I will. [ ]

Amy , I would like your uncle to help me repair the computer. —Sorry, he _____help you today . He won’t come back until tomorrow.

You ____ very happy this afternoon. Why? —Because we are going to spend the evening at Lily’s house.

What’s matter _____ your computer? [ ]