39. A. yet B. either C. too D. also
38. A. after B. since C. before D. as if
37. A. him B. her C. them D. herself
36. A. returned B. disappeared C. flew away D. ran away
35. A. me B. myself C. my D. mine
34. A. sad B. glad C. excited D. happy
33. A. What B. When C. Why D. Where
32. A. waiting B. missing C. crying D. eating
31. A. though B. because C. when D. if
30. A. listening B. speaking C. singing D. laughing