[ Infinitive and Gerund ]
This quiz is worth _____ over and over again.
A. do
B. to do
C. doing

Random Topics:
Grammar and Verb TensesVerbs with Prepositions and ConjunctionsLinking Verbs & Helping VerbsPhrasal Verb and ModalVocabulary and IdiomsTemporal Conjunctions and ConnectivesQuantifiers & Modal VerbsGerunds & Infinitives + VocabularyTOEIC Grammar and Vocabulary ReviewPassive and Active VoiceOther quiz:
Grammar › ViewThe driver __ the cat and tried to avoid it.
A. saw
B. was seeing
Modals › View
It was wrong of you to criticise your son in front of his friends.
A. You could have criticised your son in front of his friends.
B. You must have criticised your son in front of his friends.
C. You mightn’t have criticised your son in front of his friends.
D. You shouldn’t have criticised your son in front of his friends.
Phrasal Verbs › ViewMany hospitals are running _______________ of money
A. in
B. out
C. away
D. back
Subject Verb Agreement; Indefinite Pronouns › View
Which of the following has the correct subject-verb agreement?
A. Either of my aunts are coming.
B. Either of my aunts is coming.