Сопоставим время на часах с номерами предложений:
* a - 1 It's ten past eleven.
* b - 6 It's half past three.
* c - 4 It's five to nine.
* d - 3 It's twelve o'clock.
* e - 2 It's quarter to six.
* f - 8 It's twenty-five to four.
* g - 7 It's twenty past six.
* h - 5 It's quarter past one.