[ Grammar ]
John’s disappeared. Does anyone know what _________ to him?
A. happened
B. has been happening
C. has happened
D. has been happened

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Helping and Linking VerbsSimple vs Present Continuous TensesConjunctions and PronounsDependent PrepositionsUsed to & would & Past SimplePast ParticiplePronoun Antecedent AgreementIELTS GrammarSentence StructureModal AuxiliaryOther quiz:
Grammar › View. Select the correct choice: “She would prefer ___ a coffee instead of tea.”
A. to drink
B. drink
C. drinking
D. drinks
Phrasal Verbs › View
Living abroad can ________________ some challenges and difficulties.
A. wear out
B. bring about
C. run into
Grammar › ViewMrs.Zubaedah …………………………. networking courses for two years when he was promoted to be a coach.
A. had taken
B. had been taking
C. have been taking
D. could have taken
Prepositions › View
After the show, every audience stood up to congratulate him ______ his wonderful performance.
A. on
B. at
C. in
D. with
