The public transportation is very convenient in that big city, so there ________ be any difficulty in traveling around.

A．mustn't	B．wouldn't
C．shouldn't	D．needn't

—It's no easy task to catch a ticket on a website that receives 1 billion clicks daily.
—I can't agree with you more. There ________ be errors for every single step.

A．should	B．must
C．can	D．will

With all his money, he ________ worry about a little thing like 5 cents!

A．can	B．must
C．may	D．should

________ we go to the McDonald's? I'm sick of the food there.

A．Need	B．Can
C．Shall	D．Must

According to the rules and regulations, all payments ________ be made in cash in the shopping center.

A．shall	B．can
C．must	D．should

(2013·江西高考)When I was a child, I ________ watch TV whenever I wanted to.

A．should	B．could
C．must	D．need

(2013·湖南高考)He ________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.

A．wouldn't	B．shouldn't
C．couldn't	D．mustn't

(2012·全国卷Ⅱ)I'm going to Europe on vacation together with John if I ________ find the money.

A．can	B．might
C．would	D．need

(2013·重庆高考)—What are you doing this Saturday?
—I'm not sure, but I ________ go to  the Rolling Stones concert.

A．must	B．would
C．should	D．might

(2013·安徽高考)It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.

A．may	B．couldn't
C．should	D．needn't