________ advertisements are of great help, I don’t think we should entirely rely on them.
Believe it or not, no bread eaten by us is so sweet as ___________ earned by our own labour.
Living in Western China certainly has its problems, _________obtaining water is not the least.
In the keen competition of this international tennis tournament, she ________ won the championship.
By the time you arrive in Liverpool, we ___________ in France for two weeks.
To maintain a nice relationship, both sides are advised to focus on _________ they have in common.