[ Gerunds, Infinitives and Participles ]
He had a ___(heighten) sense of hearing.
A. heightens
B. heightening
C. heighten
D. heightened

Random Topics:
Grammar - Verb FormsSimple TensesVerbals and GerundsPassive SentencesGrammar - used toThird ConditionalsQuestion Tags in Verb TensesPoetryZero & First ConditionalAdverb of Frequency and TensesOther quiz:
Homonyms › ViewA snowy owl ___ upon mice, rabbits and other small animals.
a. praise
b. prays
c. preys
Linking Verb › View
Nice restaurants and cafeterias in the downtown ………tourists’ attention.
A. create
B. take
C. attract
D. invite
Grammar › ViewDavid fell in love with Italy when he studied there three years ago. He __________ living there since then.
A. is
B. was
C. has been
D. had been
Past Continuous Tense › View
_____ you _____ football at 2 PM ?
A. Were, playing
B. Was, playing
C. Are, playing
D. Do, playing
