Sandy is a real book lover and she often brings homemany books to read the library．

They speak perfect English. How long have theylearnt it— ______ they were seven years old.

Much as be_________he has a good command of English,he sometimes feels it hard to find anappropriate version for some Chinese idioms. [ ]

Young people are seeking excitement and challenges, and going where big companies are is ____ leads to so many old people being left alone in villages.

She found her calculator _______ she lostit.