All the __________expressed their opinions on the __________ of the world.
| A．expertspresent；situation present |
| B．experts present；present situation |
| C．present experts；present situation |
| D．present experts；situation present |
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 |
249. Weather _____, we’ll go boating in the West Lake tomorrow.
| A．permits | B．permitted | C．permitting | D．Permit |
248. --- How do you plan to spend this weekend?
--- I’d like to listen to the music _______ by Li Ming.
perform B. performing C. performed D. to perform