Prices for a standard box range from £3.25 ($4.51) at supermarket chain Sainsbury’s to a whopping £4.49 ($6.23) at ritzy department store Selfridges.
Unsurprisingly, there are plenty of varieties of Pop-Tarts for sale at the American Food Store, the only all-U.S. food shop in London. The American Food Store used to be a post office branch. When that closed down a decade ago, the owners decided to convert it into an American food emporium, on the advice of American university students (and given the owners’ fondness for American food, cultivated from holidays in Florida). It now sells not only a wide variety of imported American foods, but also bottled drinks, magazines and decorations.

range from…..to…..・・・〜から〜に及ぶ

Sainsbury’s・・・英国の大手スーパーマーケット

whopping £4.49・・・とっても高い£4.49

ritzy・・・豪華な~これは豪華なホテルRitzの名からできた形容詞

Selfridges・・・英国の高級デパートチェーン

the American Food Store・・・Londonにある米国製品専門のスーパー

on the advice of (somebody)・・・(誰々の)すすめで