4x^3-7x^2-9x+12=12

Em hãy lấy ví dụ giúp người đọc hiểu được: a) Biến cố là gì? b) Kết quả thuận lợi là gì? c)Xác suất là gì? d)Số phần tử của tập hợp kết quả thuận lợi

97. is/ best/one/ It/ the/ time/movies/ of/all/ of/./

98. Do/celebrate/ Vietnamese/people/ day/ Independence/ September/in/?/

99. is/group/ traditional/ performing/ some/ dances/ Vietnamese/ This/./

66. Will (A) you buy a (B) big Christmas tree and (C) has (D) lots of decorations?

67. Do (A) they hold (B) the Festival for the Dead once (C) a year in Japanese (D)?

68. Do (A) she spend (B) a week in (C) Spain participating (D) in the festival last year?

69. Did (A) you interested in (B) festivals celebrated (C) by holding (D) street parades and bonfires?

70. You should (A) drive fast (B) because this street is (C) very crowded in (D) the morning.