-- Isn’t that Ann’s husband over there?-- No, it ________ be him. I’m sure he doesn’t wear glasses.

I didn’t go to the party, but I do wish I ____there.

The boss took no notice of the suggestion given by the clerk that the new technology _____ the problems on conveying the products.

She longed for a pleasant trip in the summer, while her parents desired that she_______ at home, preparing for the coming exam..

– Is John coming by train?– He should, but he _______ not. He likes driving his car.