1.Don’t drop your cigarette butts on the floor.You could _________ fire to the house.
a.cause b.make c.set d.start
2.He felt _________tired,but he didn’t stop studying.
a.little b.fairly c.rather d.few
3.Last night’s strong wind nearly took the roof ____________.
a.away b.out c.down d.off
请选择.讲讲为什么.