1.

1). A and D2). C and D3). B and C4). A and B

Answer»

The error lies in PARTS A and B.

Part A uses the preposition 'into', which is INCORRECT. As it REFERS to the past, it should be 'in'.

Part B uses the PERFECT participle form 'having had'. This is incorrect here, as it is supposed to be the main verb of the sentence. So, it should be 'have' or 'had' or 'have had'.

Therefore, the correct answer is option 4.



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