She made a conscious attempt to look _______ though she felt tired out.
I’ll drop in at the supermarket on my way back. Do you have anything ______?
It was strange that he _____ have uttered such rude remarks on that occasion.
The organizers announced that the first ______ at the top shall receive a big prize.
Thanks a lot for the trouble you ______ to help us.
It is now generally believed that a good teacher should be ______ to his/her students.