alwaysnewbie wrote:
(A) butsupplementing
– no verb for the second independent clause starting with but
(B) and hadsupplemented
– no contrast presented, past perfect tense is not required
(C) and even though theysupplemented
– redundancy with and & even though ("and" connects two independent clauses, "even though" connects an independent clause to a dependent clause)
- only even though presents contrast
(D) although theysupplemented
- correct
(E) but withsupplementing
– no verb for the second independent clause starting with but
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