Saving and recycling are long-term projects ____ determination matters a great deal.

_______ bad weather ! I can do nothing but to stay in bed for the whole day.

I left my keys in the room yesterday. I had to get in ________ the window.– I’m afraid it was dangerous to do so.

Jeo, don’t _______ now; you’re improving all the time. It won’t be long ______ youcan speak English well.[ ]

He used to __ in a small village, but now he has been used to __ in the big city.