[ Grammar ]
My dad knows a man ________ brother works in the White House.
A. who
B. that
C. which
D. whose

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Past Simple & Past ContinuousHow often - long - much - manyGrammar and PrepositionTransitionsAdjective vs AdverbSimple Past Tense and Present Continuous TenseGrammar RulesPassive to ActivePast Tense vs Present Perfect TenseTenses - AuxiliariesOther quiz:
Grammar › ViewI don’t know ______________ at my new school
A. anyone
B. no one
C. someone
Passive Modals › View
The ____________ is a warm-blooded vertebrate that produces milk to feed its young.
A. bird
B. reptile
C. mammal
D. fish