—Are those books________?—No,they are not mine.They belong to________.
Do you know _an "o" and _ "u" in the word "computer"?
What ________ it is to have a picnic in ________ weather!
-Linda, shall we go and watch Holland Dafeng Flowers next month?-_______ we have the tickets.
—Could you tell me__________ ? —Since 2010.
Many Chinese students think science subjects are _____ foreign languages.