--- How is Helen in the new school?--- She is doing very well. There is ____ to worry about(担心).
– My hat is out of style. __________? – Maybe you should buy a new one.
– __________ have you been skating? – For five hours.
There __________ an English speech next week.
– Where is Miss Wang? – She went to Shanghai last week and will return __________ three days.
Lin saw __________ UFO last month. It’s strange.