[ 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:
Vocabulary › ViewWhat does “transparent” mean?
A. Allowing light to pass through so that objects behind can be distinctly seen
B. To spread gently through the air
C. To feel very strong emotions
D. Very impressive or large
Grammar › View
We went on ________ trip to Africa. It was _____ amazing experience.
A. a, the
B. a, an
C. a, –
D. an, an
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
