[ Gerund and Infinitives ]
It’s essential for every citizen to consider __________ to environmental conservation.
A. contributing
B. to contribute
C. contribute
D. to contributing

Random Topics:
ModifiersPresent Perfect and Past SimplePresent Progressive TenseGrammar: Defining Relative ClausesDefinite vs Zero Article Abstract NounsArticle the or zero article (-)Present Forms and Narrative TensesTenses and Verb FormsWish, Unless, If sentenceModals of AdviceOther quiz:
Grammar › ViewIdentify the correct conjunction to complete the compound sentence: “I wanted to play outside, ___ it started to rain.”
A. because
B. and
C. but
D. when
Grammar › View
Fruits and vegetables are good for you. What is the subject in the sentence?
A. are good for you
B. Fruits and vegetables
Vocabulary › Viewa severe shortage of food over a large area
A. appeal
B. expand
C. prey
D. famine
Adverbial Clauses › View
______ his motorbike, he found a puncture on the back tire.
A. After he has washed
B. While he is washing
C. As soon as he is washing
D. When he was washing
