--- Tom , why didn’t you answer my call yesterday afternoon?--- Sorry , I didn't hear the phone . I ___________ asleep.
Tell your brother to come _____, because it's going to rain in a minute or two.
A successful scientist needs _____ if he wants to make hypothesis (假设) of how processes work and how events take place.
This year the farmers were just able to gather in the _____ before the fine weather came to an end.
He hated the war so much that he decided to leave the army _____.
We suddenly saw the bus about to leave and had to run _____ to catch it.