From his on his face, I knew he didn’t want me to ask this question.
One way to understand thousands of new words is to gain ________ good knowledge of basic word formation.
The teachers in Senior High Three would like to answer ______ worry the students, especially when the College Entrance Examination is coming.
_____ ashes from the volcano in Iceland have caused problems for air traffic and business, scientists don't think it will have long-term effects on human health.
_____relieved the people most was that it wasn’t long _____the victims in the earthquake were saved by the soldiers.
Then ____ a foreign delegation would come to our school.