[ Conditional Sentence ]
Trees won’t grow _______ there is enough water.
A. if
B. when
C. unless
D. as

Random Topics:
Grammar - Place and MovementSubjective and Objective PronounModal VerbsVerb PhrasesPronouns and AntecedentsPrepositions after VerbsVocabularyDEGREE COMPARISONAdverb ClausesModals and ConditionalsOther quiz:
Grammar › ViewDon’t wake me up so ___. I need to sleep.
A. early enough
B. earlier
C. early
Tenses › View
He ………. for the national team in 65 matches so far.
A. has played
B. has been played
C. played
D. play
Modal Auxiliary › ViewYou…..hear my uncle talk about his work in Bali.
A. Must
B. Should
C. Would
Grammar › View
lead _____ sth
A. about
B. off
C. to
D. from
