– Listen ! Is Professor Johnson giving a report in the hall?– No, it _______ be him. He has gone to America.
Mark and Jackwork hard. Their parents and grandparents truly care about them.
---Where did you go on vacation? ---I Guangzhou.
---_______do you have an art festival in your school? ---Once a year.
)In which pair of the words, the underlined parts pronounce differently?
Tony answered all the questions ________ the most difficult one.