情态动词用法详解一、选择题1.A lot of online resources ________ be used either by teachers at school or parents at home
A.canB.shouldC.needD.must2.—Will your mother be at home this Saturday
—Hard to say
She _______go to the countryside to see my grandparents
A.mustB.mayC.canD.would3.—Hurry up, Jack
Let’s cross the road as fast as possible
—No, you ________
Don’t you see the light is still red
A.couldn’tB.wouldn’tC.mustn’tD.needn’t4.—There is a knock at the door
—It ________ be my mom
She always comes back home at this time
A.mayB.may notC.mustD.can’t5.—Be careful
Fire ________ be dangerous sometimes
I will put it out right away
A.mustn’tB.shouldC.canD.needn’t6.We shouldn’t throw any objects from the building
Even a small object ________ cause serious injuries or death, when dropped from a gr