18. I wish I ______ more carefully before I sent that email to the entire department. (A) would check (B) had checked (C) could have checked (D) have checked

26. According to the passage, stingless bees are important to the Amazon ecosystem primarily because they function as key pollinators, which means they: (A) generate biologically active compounds used in traditional medicine (B) regulate climatic conditions through forest conservation (C) facilitate plant reproduction and sustain biodiversity (D) limit the spread of competing insect species

18. I wish I ______ more carefully before I sent that email to the entire department.
(A) would check
(B) had checked
(C) could have checked
(D) have checked

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