单句改错(共5小题,每小题1分,共 5分。每句只能改一处,在原句中直接改正)
小题1:Air hostesses all smile when they serve for the passengers.
小题2:No one matches him when it comes to swim.
小题3:A poor nourished body needs more energy to combat disease.
小题4:Foreigners always associate China to the Great Wall.
小题5:Not until then he realize the importance of the problem.