When ________ to tell the difference between British and American English, the linguist made a long and ________ speech.
B
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Helost________________parentswhenhewasachild.
Thedelegation________RussiawillvisitLondonthisafternoon.
Hegraduatedfromcollege________hisparentsdivorced.
Hermothercan’tspeakEnglish________French,butisgoodatJapanese.
WithanappropriaterelativepronounMybrotherspeaksEnglishfluently,________Idon’t.