He expressed his gratitude to his head teacher, without _______-help he wouldn’t have made such great progress in his studies.
More and more people are beginning to _____ importance to living a low-carbon(低炭) life.
The number of people visiting the exhibition ______ 50, and a number of them ____ painters.
Although it’s at ____ dusk, the children don’t get tired of playing ____ football outside.
Don’t you consider _____ funny to wear jewels borrowed from others to a party?
If the earth stopped moving, everything _____.