One of the proposals that ____ submitted last week ____ still under review.
were ___ isসঠিক উত্তর
খwas ___ is
গwere ___ are
ঘwas ___ are
সঠিক উত্তর: were ___ is
Relative clause "that ___ submitted" এর antecedent হলো বহুবচন "proposals", তাই "were submitted"। কিন্তু মূল বাক্যের subject "One" একবচন, তাই "is still under review"। সঠিক জোড়া হলো were ... is।