[ Grammar ]
Walter Hunt invented an enormous ………. of devices, including the safety pin and a machine for making nails.
A. number
B. amount
Select your answer:
Random Topics:
Countable & Uncountable NounsComparatives - SuperlativesSimple and Continuous Present TenseArticlesVocabulary and PhrasesGrammar - Countable/ UncountableConjunctive AdverbsVerbal PhrasesPast Simple, Present Perfect TenseGrammar SuffixesOther quiz:
Grammar › ViewTina _____ goes to the library on Saturdays because she likes reading there.
A. ever
B. never
C. seldom
D. usually
Grammar › View
Mom is cooking in the kitchen, ________?
A. doesn’t she
B. isn’t she
C. is she