Mark Twain _____ along the Mississippi River, which was _____ to his writing.
What he had done is far from _____.
Luckily, the bullet narrowly missed the captain _____ an inch.
The ship sailed _____ Xiamen _____ 30 miles an hour.
It’s quite warm _____ January.
The key _____ four modernizations lies _____ the science and education.