[ Grammar & Vocabulary ]
They encouraged citizens to sort waste into categories, ______ improves recycling efficiency.
A. what
B. that
C. how
D. which
Random Topics:
Grammar - Be going toMust Vs Have toPhrasal Verb & Prepositional PhraseNoun FormationVerbs and Subject Verb AgreementTenses and ComparisonsIrregular Plural NounsArticles - rulesVocabulary, Adjective & PrepositionPresent PerfectOther quiz:
Grammar › ViewHow many prepositions are in the sentence:
Aside from writing essays, we have to learn grammar, to edit paragraphs, and to work in groups.
A. 2
B. 3
C. 1
D. 4
Auxiliary and Modal Verbs › View
In which tense is ‘could’ used to express ability?
A. Future
B. Conditional
C. Present
D. Past
Grammar › ViewChoose the correct word to complete the sentence: The cat chased _______ tail.
A. it’s
B. its
C. its’
D. it
Tenses › View
He is ____ black jacket today.
A. wears
B. wear
C. wearing
D. is wearing