The speech by the mayor of Shanghai before the final voting for Expo 2010 is strongly impressed my memory.
| A．to | B．over | C．by | D．on |
You have to learn how to be a ______ first, and then to be a student.
| A．human being | B．people | C．person | D．man |
______ the traffic jam, he didn’t catch his plane, which was reported to have crashed soon after it took off.
| A．Because of | B．On account of | C．Due to | D．Thanks to |
Mr. Green is said _____ an experiment to prove the new method of solving the problem when young.
| A．to do | B．to have done | C．to be doing | D．to have been doing |
. You will see this product made in this factory _____ wherever you go.
| A．to be advertised | B．advertised | C．advertise | D．advertising |
_____ the big snake, the little girl stood under the tree _____ to death.
| A．Seeing; frightened | B．Seeing; frightening | C．Seen; frighten | D．To see; frightening |