[ Grammar ]
The whole world is waiting _____ a vaccine against Covid-19.
A. by
B. in
C. to
D. for

Random Topics:
-ed/-ing AdjectivesGrammar : Must (Necessity)Superlative AdjectivesComparative Adjectives and AdverbsGrammar and Sentence CorrectionNouns, Articles, DeterminersSimple and Progressive Verb TensesSubordinating ConjunctionFor vs SincePronouns of QuantityOther quiz:
Grammar › ViewI __________ read Arabic yet. I have only just started to learn the alphabet.
A. ought not
B. can’t
C. don’t have to
D. shouldn’t
Question Tags › View
This is the second time she has been here, ______?
A. hasn’t she
B. isn’t it
C. isn’t this
D. has she
Modal Verbs › View___ they come to the concert tonight?
A. Can
B. Must
C. Should
D. Can’t
Grammar › View
My brother ________to the dentist yesterday.
A. Want
B. Goes
C. Went
D. None of the above
