Although medical science________ control over several dangerous diseases, what worries us is that some of them are returning.
In the dream Peter saw himself________by a fierce wolf, and he woke suddenly with a start.
Helen had to shout________above the sound of the music.
The driver was still________what had happened when he was sent to hospital, but after a while he lost________.
________,I have to put it away and focus my attention on study this week.
—Smoking is bad for your health. —Yes, I know. But I simply can't________.