Complete the following sentences with the suitable verbs! 1. We ................ in the singing contest last month. (participate) 2. Where did you .............. your holidays last year? (spend) 3. Did you ................ your classmates in your last birthday? (invite) 4. I ................. my little brother to my friends when they visited my house last sunday. (introduce) 5. When I was an elementary school! student, I ............... three kilometers to school every day. (walk)