________ I'm mistaken, I've seen that tall man at a party before.
| A．If | B．As |
| C．Unless | D．When |
the trees in that thick forest are so dose together that there is hardly any room to move them.
| A．between | B．in | C．among | D．across |
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 |
This new type of TV set is very thin, and it is than a one-hundred-page book.
| A．less | B．not thinner | C．no thicker | D．no thinner |
Jack’s brother is than him.
| A．old; elder | B．elder; older | C．old; eld | D．elder; younger |
---Why didn’t you go to the concert last night?
---It was something interesting.
| A．more or less | B．far less | C．much more | D．any further |