$\text{51. didn't have }$

$\rightarrow$ QKD 

$\rightarrow$ S+ didn't +V 

$\rightarrow$ DHNB : thirty years ago 

$\text{52. went }$

$\rightarrow$ QKD 

$\rightarrow$ S+ Ved/V2 

$\rightarrow$ two months ago 

$\text{53. has played }$

$\rightarrow$ HTHT 

$\rightarrow$ S+ have / has + V3 

$\rightarrow$ DHNB : since last month 

$\text{54. is sleeping }$

$\rightarrow$ HTTD 

$\rightarrow$ S+ tobe + Ving 

$\rightarrow$ DHNB : be quite ! 

$\text{55. will be having }$

$\rightarrow$ TLTD - có thời gian cụ thể 

$\rightarrow$ S + will + be + Ving 

$\rightarrow$ DHNB : at this time tomorrow 

$\text{56. went }$

$\rightarrow$ QKD 

$\rightarrow$ S + Ved/ V2 

$\rightarrow$ DHNB : last week 

$\text{57. are playing }$

$\rightarrow$ HTTD 

$\rightarrow$ S + tobe + Ving 

$\rightarrow$ DHNB : Now

$\text{58. spent }$

$\rightarrow$ QKD 

$\rightarrow$ S+ Ved/V2 

$\rightarrow$ DHNB : Last summer 

$\text{59. Have you ever been }$

$\rightarrow$ HTHT 

$\rightarrow$ Have / has + S+ V3 

$\rightarrow$ DHNB : ever 

$\text{60. belongs }$

$\rightarrow$ HTD 

$\rightarrow$ S+ V; Vs/es