The UN _____ the documents to save the environment in 2007 and they work well all over the world now.A. drew up B. built up C. gave up
—We are going to play in tomorrow’s football match.I feel very nervous.Dad. —________.I'm sure you can win the match.
The man ________ is talking to our teacher is Betty’s father.
If you have trouble pronouncing these words, you can repeat them over and over again ________ you are comfortable with them.
一Would you like to go to the amusement park? —If Jack does,________.
—It’s difficult to get to the other side of the river. —I think a bridge ________ over the river.