No student likes ________ in the teacher’sface during the class.

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

_______ enjoy Beijing opera with us —Good idea.

_____ this cake, you’ll need 2 eggs, 175g sugar and 175g flour.

Jack is late again. It is __________ of him to keep others waiting.[ ]