The spacecraft has never been to the moon, ________ —Certainly.

When I am feeling blue, I prefer _______ around the lake ______ myself up.

To his joy, the suggestion he put forward at the meeting was _______ immediately.

I would rather send my daughter to a dancing class, _______ my husband prefers her to learn piano first.

The boy was so careless that the glass fell from his hand and it ______ on the floor. [ ]