1.-The boys ______ __________many problems.(give) 2.- It ______ __________ warm this week.(be) 3.-They _______ __________a lot of food.(prepare) 4.-The pupils _______ _________for their exam.(study) 5.-The boy _______ ___________off his bike.(fall) 6.-He ______just _______out.(go) 7. He _______ already _________ to me.(speak) 9. _________ you ever __________ a mango?(eat) 10. I _________ never __________ to Africa. (be)