[ Gerunds And Infinitives ]
We are extremely grateful to the doctors …… so promptly when my son was suddenly taken seriously ill.
A. with having acted
B. to acting
C. to be acting
D. for having acted
E. with acting

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Modal Verbs and PermissionPresent Tenses and ConnectorsNounsNoun, Verb, AdjectiveConjunctivesModal Verbs and ConjuctionsSentence Adverbs & Third ConditionalPresent Simple and Present Continuous TenseAdjective or AdverbGrammar - Place and MovementOther quiz:
Grammar › ViewYou need _________ new shoes – those ones are too old.
A. to buy
B. buy
C. buying
Grammar › View
The plane is faster _________________ the train.
A. that
B. this
C. than
D. these