He’s never sung English songs before,__________he—-_________. It’s his second time to sing inEnglish.

Paper bags produced every year are ______ the world’s production of vehicles.

John is really expert at fighting cyber-crime!—Yes, but he _____ his potential if it had not been for his desire to meet the new challenge.[ ]

Will you go to the park now? —Not until I ________ my physics exercises

It was Paul’s low test scores that_________ his chances of getting into a good school.