It is an interesting story and one can't put it down _____ one has finished reading it.
| A．after | B．when | C．since | D．until |
It''s nearly seven o''clock . Jack ____ be here at any moment .
| A．must | B．need | C．should | D．can |
— Could I borrow your dictionary ?
— Yes , of course you ____ .
| A．might | B．will | C．can | D．should |
I talked for a long time , and in the end I ____ make her believe me .
| A．could | B．can | C．must | D．was able to |
— I sent him the dictionary by mail this morning .
—You ____ that; he''s coming tomorrow afternoon .
| A．needn''t have done | B．didn''t have to | C．needn''t do | D．mustn''t do |
In three months he ____ speak good English .
| A．can | B．can be able to | C．will be able to | D．may be |