The race to seek out civilizations around distant stars ________, as an international group discovered an Earth-like planet in a special zone.[ ]

We ______ the difficulty together, but why didn’t you tell me?

I want to have ___________for breakfast this morning.

Mom, must I take out the trash now—No, you ________. You may take a rest first.

44_____ the _____ of modern industry, the pollution is becoming more and more serious