I will never the days I spent with my host family in Britain． （forgetful）
The of AI（人工智能） will enable us to learn more about our brains．（ develop）
Fortunately， no one was hurt in the earthquake several weeks ago．（serious）
Shirley is an early bird． It was for her to be late for school today．（usual）
Jessie cooked a meal for her big family by on New Years Eve． （she）