1 . I advise you to stay away from Mary. Although she is usually easy-going, she ______be quite annoying sometimes.

A．can

B．need

C．must

D．should

2 . My nephew William is still a puzzle to me—sometimes he is as quiet as a mouse, while he______be fairly active at other times.

A．should

B．need

C．must

D．can

3 . Old age _______ burn and rage at the close of day; rage, rage against the dying of the light.

A．couldn’t

B．should

C．wouldn’t

D．shall

5 . I wonder why we________ eat out all the time when we can cook our own meals at home.

A．may

B．would

C．should

D．must

6 . ---______ you possibly take me to the railway station on your way to work tomorrow?
---No problem.

A．May

B．Might

C．Should

D．Could

7 . — Who ________ it be that left the door unlocked?
— It might be Mike. He is always forgetting things.

A．could

B．should

C．must

D．might

8 . Seeing her peers struggling for success and independence, Zhang yue offered her suggestion that they ________ seek guidance from expert consultants.

A．must

B．should

C．can

D．shall