The student couldn’t _________what the teacher was trying to explain.
Betty’s mother died of cancer last year, which had a great influence on her. She her mind to be a doctor to help the sick.
—What do you think________ an important part in their lives? —Pop music.
As is known to all language learners, the newly learnt words will soon be forgotten unless______ used in everyday communication.
The money collected should be made good use __________ the people who suffered a lot in this terrible earthquake.
Between the two generations, it is often their different views of life and value _______ cause family conflicts.