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2) They send two million books to America every year.
3) We check every car engine carefully.
4) I'll return the book to you tomorrow.
5) We haven't seen Peter since last party.
6) She has told the children about the party.
7) They are going to build a new bridge in the area.
8) They have just introduced a new style of jeans in the USA.
9) People should stop experiments on animals.
10)We have to improve all the schools in the city.