[ Grammar & Vocabulary ]
They encouraged citizens to sort waste into categories, ______ improves recycling efficiency.
A. what
B. that
C. how
D. which
Select your answer:
Random Topics:
Conditional Sentences Type 1Past Perfect SimpleAdverb Clause ConnectorTenses and Verbsused to vs be used to vs get used toComparative and Superlative AdjectivesWish clauseLinking Words and ConjunctionExpressing Obligation and ModalsPunctuationsOther quiz:
Grammar › ViewI love ________ new car!
A. my
B. mine
C. me
Conjunctions › View
I could neither find my phone nor remember where I had left it.
A. neither…nor
B. either…or
C. not only…but also
D. both…and