______ a new house is impossible for the young couple because they haven't saved enough money．

I don’t think it easy, even if we work hard, _____ the South Korea and the North Korea to sit down to talk at present.

The first one ______ will get a beautiful gift.

Mrs Baker has her hair _____every Friday afternoon after work.

Visitors are not permitted ________ the park after dark, because of the lack of lighting.