用所给词的适当形式填空。1. My uncle often ____________(watch) TV after supper.
2. Tom lives on the ____________ (five) floor.
3. She likes ____________ (sing) and dancing.
4. She ____________ (go) to work by bus every morning.
5. A salesperson can ____________ (be) either a man or a woman.1. watches 2. fifth 3. singing 4. goes 5. be