He had a wonderful childhood, _____ with his mother to all corners of the world.
| A．travel | B．to travel | C．traveling | D．traveled |
40. When I was very young, I thought that inside the radio ______ who liked talking very much.
| A．a group of people lived | B．a group of people did live |
| C．did a group of people live | D．lived a group of people |
39. ______ has forced people, especially women, to endure a lot of pain and suffering to make themselves more beautiful?
| A．It is what | B．It is what that |
| C．What is it that | D．What it is that |
38. Mr. Black ______ home because his briefcase is still on the desk.
| A．mustn’t have gone | B．can’t have gone |
| C．shouldn’t have gone | D．needn’t have gone |
37. All animals, ______ their size, breathe once for every four heartbeats.
| A．however | B．whatever |
| C．no matter | D．in spite of |
36. ______ has helped to save the drowning girl is worth praising.
| A．Who | B．No matter who |
| C．Anyone | D．Whoever |