We playing basketball．We often play it after school．

Listening to loud music at rock concerts__________caused hearing loss in some teenagers

Is it my age ________the boss minds—I’m afraid so. He will consider ________necessary to have an experienced assistant.

The president hopes that the people will be better off when he quits than when he_______.

There aren’t many seats left for the concert; you had better make sure ________ two today.[ ]