We____finish it ahead of time, though it was such a tough task.
These natural disasters have warned us that everyone should start to protect the_________ immediately.
There_________still some milk in the fridge. It’s not necessary to go to the store today.
—_________T-shirt do you like better, the red one or the blue one? —I prefer the red one.
Your English teacher has never lost his temper, _________he?
You had better_________because you have to drive back home.