What does the letter “o” in the word “mother” pronounce发音? A. A. / a: / B. / əu / C. /Λ / D. /u /
—We are going to have a picnic next Sunday. —_______________________
)When the teacher came in, the students______ at once.
)When did you there?the morning of June 12th.
)There is snow.Put on your coat.It’s cold.
)Tong is afraid,because he was terrified by an air accident.