I’m terribly sorry to keep you waiting for so long． — _______．

Many teenagers show interest in the books that are written ________ Guo Jingming.—That’s true. My son says he can get what he thinks and wants in his books.[ ]

Mum, _______ my teacher, Mr Wang.

What timethis boy get up in the morning?

Add the onion and the tomato the sandwich.[ ]