Your mother isn’t a doctor, is she?—-___________. She teaches English in a middle school.

The old man lives ____ in the countryside, but he doesn’t feel_____ because he chats with his children on the Internet every night.

They were invited to an important ball ____ the first time ____ their lives. [ ]

Only by working hard and never giving up our goals.

How does your brother like the song Two Butterflies?—Great! He _____ such a beautiful song before.