10. ----Shall I help you carry your travel case to the train, Granny? ----Oh, no, my boy. It is _____ heavy. Thank you anyway.
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.
What one thinks and feels is mainly _____ traditions, habits and education.