4 Complete the sentences. 0 I couldn't understand 1 2 3 4 We 5 Use could/couldn't and the verbs in brackets. (not understand) Maths when I was small. (your brother / read) when he was four years old? (not swim) when he was a child. (speak) German when he was ten. (not play) any musical instruments as children. (you/play) chess at the age of ten? Anthony Dad​