Marco Polo is said to have sailed on________Pacific Ocean on his way to Java in________thirteenth century.
After three months, these young students finally became used to the ______ of life in a big city abroad.
Although the working mother is very busy, she still_____ a lot of time to her children.
Honesty is the most important______ a man can have.
Probability is the mathematical study of the _____ of an event's occurrence.
The result of the election has not been__________.