In the question below, a paragraph is split into several parts. Examine each part for grammatical accuracy and select the option that correctly identifies which parts are grammatically correct or incorrect.


(A) This year’s increased rainfall have caused frequent waterlogging across the city. (B) If the drainage network is maintained before the heaviest spells, (C) neighborhoods will be spared repeated flooding. Farmers report that reservoirs have filled early, helping irrigation (D) but also raising the risk of pests. While forecasts predict continued showers, but officials advise residents to avoid low-lying underpasses. (E) Because timely alerts have been issued this year, many commuters have started leaving home earlier to avoid gridlock.

Correct option is B

Explanation & Corrections
· (A) — Incorrect (Subject–Verb Agreement)
· Error: rainfall have → singular uncountable rainfall takes has.
· Fix: “This year’s increased rainfall has caused frequent waterlogging across the city.”
· (B) — Correct (If-clause)
· If + present simple, main clause with will is fine.
· (C) — Correct (Main clause of the conditional)
· “neighborhoods will be spared …” correctly completes (B).
· (D) — Incorrect (Double conjunction)
· Error: While …, but … (two contrast markers).
· Fix (choose one):
· “ While forecasts predict continued showers, officials advise residents to avoid low-lying underpasses.” or
· “Forecasts predict continued showers, but officials advise residents to avoid low-lying underpasses.”
· (The earlier phrase “helping … but also raising …” is fine: parallel -ing forms.)
· (E) — Correct (Because-clause + present perfect)
· “Because timely alerts have been issued, many commuters have started …” is grammatical and idiomatic.
Corrected paragraph:
(A) This year’s increased rainfall has caused frequent waterlogging across the city. (B) If the drainage network is maintained before the heaviest spells, (C) neighborhoods will be spared repeated flooding. (D) Farmers report that reservoirs have filled early, helping irrigation but also raising the risk of pests. While forecasts predict continued showers, officials advise residents to avoid low-lying underpasses. (E) Because timely alerts have been issued this year, many commuters have started leaving home earlier to avoid gridlock.