—I think the whole class is going on a field trip next Friday.
—I’m not sure. ____________ has paid the transportation fee.
| A．Not everyone | B．No one | C．None of them | D．Neither of us |
---When can I come for the English books? I need them tomorrow afternoon.
---They ______ be ready by half past eleven.
| A．can | B．should | C．might | D．need |
The young man is a person of great perseverance(毅力), from which he ______ a lot.
| A．satisfies | B．gains | C．awards | D．benefits |
---What will you do next Sunday?
---Maybe do some shopping, for I ______ go to school on Sunday.
| A．mustn’t | B．can’t | C．don’t have to | D．had better not |
As we all know, no one is perfect, and everyone has his own ______.
| A．mistakes | B．weakness | C．tricks | D．benefits |
It was playing computer games that cost the boy plenty of time that he ______ have spent studying.
| A．might | B．must | C．could | D．ought to |