7.He specializes in chemistry.

48.He has an () jacket.

47.He went ().

46.I met an old friend of mine ( ).

45.He said that he ( ) her the day before.

44.The song was composed ( ) an 8-year-old boy.

43.Jenny ( ) a day’s work.

42.She said that she ( ) about her date.

41.( ) the end of that year， Henry had collected more than a thousand foreign stamps.

40.This house ( ) last year.

39.He told me that he ( ) me a special present.