Yesterday the teacher told us that the earth ________around the sun.
What’s the right sound of the word “these”?
Which word and letter have different (不同的) pronunciations?
---Could you please help me to take these books there? ---__________.
______ he was ill yesterday, _______ he went to school.
.---What do parents in China want their children to do? --- Most parents expect to see their children_____ hard all day.