Complete the questions with was there or were there. Then write true answers. 1 ... a nuclear bomb? 2 ... any great invention?

1. Was there a nuclear bomb? - Yes, there was. (Была ли ядерная бомба? - Да, была.) 2. Was there any great invention? - Yes, there was. (Было ли какое-нибудь великое изобретение? - Да, было.) 3. Was there a Roman invasion? - Yes, there was. (Было ли римское вторжение? - Да, было.) 4. Were there any dinosaurs in the world? - Yes, there were. (В мире были динозавры? - Да, были.) 5. Was there a civil war in Russia? - Yes, there was. (Была ли гражданская война в России? - Да, была.)