they have ever been to an English - speaking county . (一般疑问句)
Have they ever been to an English - speaking county .
she has been a flight attendant for two years . (对 for two years提问)
How long has she been a flight attendant .
his father has been to America twice . (对twice 提问)
How many times has his father been to America .
Linda is taller than any other girl in her class . (同义句)
Linda is the tallest girl in her class.
improve , why , you , do , English , want , to , your (连词成句)
Why do you want to improve your English?
有不会的可以再问我