Can you come to have dinner with me this evening—I’m afraid not. I _______ take care of my grandmother. She is ill.

In the school hall, where a meeting ,some students are busy preparing for it.

Had it been possible I would have gone to the movies but I _____ busy.

He is always clever. I wonder how it_____that he should have failed the simple test this time.

Could you tell me __________–Of course, last night.