We expected 50 people to take part, but the_____number was a lot higher.

After two hours of hard playing,the Shandong Team won the _________.

The two parties are holding the talk in a friendly________ at present. Hopefully，they will reach an agreement.

As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even larger volume of poisonous gas.

Thanks to the old man’s hard work, a lot of _____ has been covered with green trees.