25. – Tom, it's too late. Our son ________ be back.
– Don't be anxious. I dare say he ________ have some extra work to do.
| A．can; must | B．will; might | C．should; must | D．must; may |
He was generous with his time, ______ I was grateful..
| A．for which | B．at which | C．with which | D．with which |
Until today we have reached a stage ______ we have almost no rights at all..
| A．why | B．what | C．how | D．where |
I invited Joe and Linda to dinner, but ________ of them came.
| A．neither | B．either | C．none | D．both |
Only when he is seriously ill ______ in hospital.
| A．he does stay | B．does he stay | C．he stays | D．stays he |
I would advise you there by bus, because it’s too crowded.
| A．never of going | B．not going | C．not to go | D．that went |