Up to now, thousands of red phone boxes, the old image of Britain, ________ due to mobile phones.
The school requested that all the students ____ school uniform on weekdays in school.
Bats are surprisingly long-lived creatures, some _____ a life span of around 20 years.
I often think of those occasions ______ we had a happy time together.
Every day _____a proverb aloud several times until you have it memorized.
In April, thousands of holidaymakers remained ______ abroad due to the volcanic ash cloud.