— Hi, Susan, I didn’t see you at the party.— Oh, I ____ for an English test.
They thought ________ important to look left and right when ________ the road.
The guide said that much attention must __________ these details.
He couldn’t ________an answer when I asked him why he was late.
— Mrs Black is an organized housewife.—That’s right. Everything in her house is always ________.
The railway _______ Qinghai to Tibet is the longest plateau (高原) railway in the world.