This book _____ Lucy’s. Look! Her name is on the book cover.
| A．must be | B．may be | C．can’t be | D．mustn’t be |
--- Tom, where is your father? --- I’m not sure. He_______ in his office.
| A．is | B．may be | C．maybe | D．may |
----Jack , you look tired today. What’s wrong?
-I was ____busy_______ I didn’t go to bed until midnight yesterday.
| A．such , that | B． too, to | C． so ,that | D．enough to |
-----Must we clean the classroom now?------No ,you _______.
| A． must | B． needn’t | C． aren’t | D． mustn’t |
I would rather die than ______.
| A．to give in | B．gave in | C．giving in | D．give in |