The boy looked very ______; he must have seen something _____ on the way to school.
Since then the number of people taking driving lessons _______ 20%.
To our surprise, we got ______ people to attend the meeting as we had expected.
Ann never dreams of ______ a chance for her to go abroad.
He is ______ a teacher to me, and he is also my friend.
He kept a little notebook, in which _______ the names and addresses of his fiends.