_______ a precious diamond necklace for his wife, Martin could hardly afford a tie for himself.
Because of the heavy traffic, it was already time for lunch break __________ she got to her office.
__________ all of them are strong candidates, only one will be chosen for the post.
__________ volleyball is her main focus , she's also great at basketball.
Please call my secretary to arrange a meeting this afternoon,or __________ it is convenient to you.
At school, some students are active __________ some are shy, yet they can be good friends with one another.