a) Listen and repeat. How do we form ordinal numbers?
1st = first
2nd = second
3rd = third
4th = fourth
5th = fifth
6th = sixth
7th = seventh
8th = eighth
9th = ninth
10th = tenth
11th = eleventh
12th = twelfth
13th = thirteenth
14th = fourteenth
15th = fifteenth
16th = sixteenth
17th = seventeenth
18th = eighteenth
19th = nineteenth
20th = twentieth
Ответ: ordinal numbers