We all hope to ________ time on the return journey by not stopping at night.
Many of the scientists and engineers are judged______ how great their achievements are.
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.