Daisy:“When do children in Vietnam go to primary school?” Jack: “______________.” A. At 6 years B. At the age of six years old C. When they are 6 years old D. When they are 6 old years
Daisy:“When do children in Vietnam go to primary school?” Jack: “______________.”
A. At 6 years
B. At the age of six years old
C. When they are 6 years old
D. When they are 6 old years