It is summer in Qingdao. It’s very hot and humid. Class 4 are 　41 vacation. They are all having 　42 good time there. All the students are 　43 　red swimsuits(泳装). What are they doing? Some boys and girls 　44 in the sea(大海). Others are playing beach volleyball. They look 　45 . Look at this 　46 of students 　47 on the beach. They are really 　48 . Our teacher is 　49 for the students. Where’s Lily? Look! She’s running after Kate. I’m surprised they can run so fast(快) in this 　50 .

41. A. on　　　 　　B. in　　　 　　 C. at　　　　 　　　D. with

42. A. /　　　　 　　B. a　　　 　　 C. an　　　　　 　 D. the

43. A. wears　　　 B. putting on　　 C. wearing　　　　 D. put on

44. A. swim　　　　 B. swimming　　 C. swims　 　　　 D. are swimming

45. A. cool　　　　 B. hot　　　　　 C. cold　 　　　　 D. sunny

46. A. pretty　　　 　B. class　　　　 C. grade　　　　　 D. group

47. A. lie　　 　　　B. lies　　 　　　C. lying　　 　　　 D. are lying

48. A. relax　　　 　 B. relaxed　　　 C. relaxes　　　 　 D. relaxing

49. A. taking photos　 B. is taking photos C. takes photos　　 D. take a photo

50. A. hot　　　 　　 B. heat　　　 　 C. warm　　　　 D. summer