Complete the sentences with the correct form of the words in the brackets.
Câu 1: The ao dai is the _________ dress of Vietnamese women. (tradition)
Câu 2: They _________ me to join their family to Hue last year. (invitation)
Câu 3: The old man walked _________ to the park. (slow)
Câu 4: Tet is the most important _________ for Vietnamese people. (celebrate)
A.
B.
C.
D.