(1) Children found it hard to their new school.  (2) Will you my clothes while I have a swim? (3) The species in the middle of the 18th century.  (4) Nowadays more and more people are their health.  (5) He spends one hour on computer games every day .  (6) Smokers are the danger of smoking to their own health.  (7) They could hardly where the road was in the darkness.  (8) I feel it is absolutely necessary for me to him the meeting today. 

(1) Don't go skating today—there are dangerous in the ice. (2) The police to the crowd not to panic. (3) Everyone should treasure his or her life. (4) This drug will your discomfort. (5) Cultural exchange also promotes understanding in a/an world. (6) Our goal must be the preservation of the environment. (7) I found it hard to with any of the characters in the film. (8) You need to be to survive in the jungle. (9) He earns a/an amount of money. (10) The goalkeeper the ball twice before kicking it.