The old man, ______ abroad for twenty years, is on the way back to his motherland.
_____at what he said, she asked him why he said so to her.
Soon , Mary _____ the shock and became calm again.
The children were surprised by the sudden _____ of their teacher.
---Mike, you know, I have read the book twice! ---______? I have read it so many times that I can recite it now.
—I hear you have an experience in the Royal Air Force. Is that ture?—Yes. I ______ in the Royal Air Force for six years. A. served B had served C joined D have joined