[ Grammar ]
He was a difficult child, probably due to ____ (look after) by a series of different foster parents.
A. looking after
B. being looked after
C. to be looked after
D. to look after

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Transitive and Intransitive VerbGrammar (want to/ need to/ have to)Verb Moods and Vague PronounsHas and HaveHave vs. HasPhrasal Verbs and Verb FormsSimple Present Tense vs Present Continuous TenseWord FormationProgressive Verb TensesConditional Sentence Type 1Other quiz:
Tenses › ViewFuture Simple: Next summer, we ________ a trip to the mountains.
A. will plan
B. are planning
C. planned
D. plans
Vocabulary › View
What does “lucrative” mean?
A. Profitable
B. Nonremunerative
C. Unprofitable
D. Gainful