23. A
[conditional sentence type 1: S1 + V(present simple)..., S2+will/ may/ ... + V (inf)]
24. C (phải dịch đúng nghĩa nên ko chọn B)
[ conditional sentence type 2: S1 + V (past simple) ..., S2 + would/could/... + V (inf) ]
25. A
[ conditional sentence type 2 : S1 + V (past simple) ..., S2 + would/could/... + V (inf) ]