54. My sister doesn't aerobics every morning.

Có every morning → HTĐ

55. Lan goes to school six days a week.

Có six days a week → HTĐ

56. We always don't go swimming in the winter.

Có always → HTĐ

57. He often goes the movie on Sunday.

Có often → HTĐ

58. The students are doing their homework now.

Có now → HTTD

59. My mother likes iced tea.

Nói sở thích → HTĐ

60. He never goes camping because he doesn't have a tent. 

Có never → HTĐ

Bài làm :

54 . My sister usually doesn't aerobics every morning.

55 . Lan goes to school six days a week.

56 . We always don't go swimming in the winter.

57 . He often goes the movie on Sunday.

58 . The students are doing their homework now.

59 . My mother likes iced tea.

60 .He never goescamping because he dosen't a tent.

Câu 54,55,56,57,59,60 là câu hiện tại đơn

Câu 57 là hiện tại tiếp diễn