Not only_______polluted but_______crowded.
| A．was the city;were the streets | B．the city was;were the streets |
| C．was the city;the streets were | D．the city was;the streets were |
254. --- We are going to have a volleyball match on the playground tomorrow afternoon.
--- Really? I ________ watch it.
| A．will | B．am going to | C．can | D．am able to |
253. Great changes ________ for the latest twenty years in China.
| A．have taken place | B．have been taken place |
| C．have happened | D．have taken the place of |
252. My little brother _________ the Young Pioneer Team last year.
| A．took part in | B．attended | C．joined | D．Accepted |
251. The weather turned to be very bad. Very soon the wind had ________ the snow into drifts.
| A．collected | B．gathered | C．piled | D．Placed |
250. Jack is a very stubborn(顽固的) person. I was unable to _____ him to do as I said. I want to ask you to have a word with him.
| A．let | B．make | C．prevent | D．Persuade |