28．The largest collection ever found in England was one of about 200,000 silver coins, _____ over 600 years old．
| A．all of which | B．all of it | C．all of that | D．all of them |
—Have you found out anything, sir?
—We are sure that the thief entered the house through the window instead of breaking in. Youhave closed the window before you left.
| A．shouldn’t | B．must | C．couldn’t | D．might |
As far as we know, traveling in space has been made with the development of science and technology.
| A．it was possible | B．it possible | C．possible | D．that possible |
After reporting the accident to the police, the couple hurried off and in the crowd.
| A．was lost | B．were lost | C．had lost | D．lost |
So far there is no proof people from other planets do exist.
| A．how | B．what | C．which | D．that |
Color shapes our view of world and it may have far greater influence on our lives than many of us realize.
| A．a; a | B．the；不填 | C．the; the | D．the; a |