Be careful. The ice is not thick enough ___________. — Thanks. I ___________.

Where’s your father?－He ______ Beijing. He won’t be back ______ next week.

Millie is _______clever a girl that she has worked out_______ difficult math problems.

_____ well you drive, you must drive carefully. [ ]

I’ve always dreamt ______ living in a big house. After many years’ hard work, I’m thinking _____ moving and changing my small house ______ a larger one.