In my opinion, ______ wild animals should be allowed to live in ______ wild.
The policeman warned the driver ________ so carelessly.
You can never know ________ when she received our nice birthday presents.
I don’t like the way ______you speak to him. Which the following answer is wrong?
---What can I help you, sir?--- I’d like to have this watch_______.
The thief, who was put in ______ prison. had____ feeling of guilt(内疚), so he made ________ great progress.