Put the verbs in brackets in their correct form. 1, If we (not economise) ......... on electricity, there will be power cuts. 2, I hope he (finish) ......... his homework before we (get) ......... (back) 3, If we sit too far away from the screen I (not be) .......... able to see the film. 4, Listen to those people! What language they (speak) ........ ?