[ Adjective & Adverb ]
When _______grapes are ripe, they must be harvested.
A. a
B. an
C. the
Random Topics:
Modals of AdvisabilityGrammar: is/are/was/werePast Simple & Past PerfectVerbs + Gerund or InfinitiveNoun QuantifiersGrammar AssessmentPresent Simple Tense PassiveGive, do and makeSimple Past Irregular & NegativeGrammar and EssayOther quiz:
Grammar › ViewI had a car accident yesterday, but _______ I wasn’t hurt.
A. fortunately
B. carefully
C. suddenly
Grammar and Vocabulary › View
There is no change… the patient’s condition.
A. in
B. at
C. on
D. of
Conjunction › ViewWhy _____ he want to learn English? – Because he wants to talk to foreign friends.
A. do
B. does
C. is
D. are
Quantifiers › View
There are …………… exercises in GrammarBank.
A. many
B. much
C. a lot of/ lots of