—What do you think of our design for the new car?—Pretty good. But I find theirs is _____ worth considering and studying.
The door ________ open, no matter how hard she pushed.
No one ________ be more generous; he has a heart of gold.
They were determined to carry out the plan at first, but then we ________ persuade them to change their minds.
—Could I use your pen? —Yes, of course you ________.
When winter comes, _________ spring be far behind?