At least 450 years ago, corn was____ China.
In spite of _____ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
A little knowledge is _______, because it can cause people to think they are more expert than they really are.
Don’t worry too much about making _____ mistakes. They are ______natural part of learning.
. ---I’ll take my driving test tomorrow.---____!
35. makes the peasant worker proud is he has set up a new bridge for the villagers.