No sooner had we reached the top of the hill _____ we all sat down to rest.
The ship sailed _____ Xiamen _____ 30 miles an hour.
It’s quite warm _____ January.
The key _____ four modernizations lies _____ the science and education.
What one thinks and feels is mainly _____ traditions, habits and education.
Get in touch with them, for they will be anxious _____ news of your arrival.