[ Phenomenon(s) vs. Phenomena ]
Is air pressure a …?
(a) phenomenon
(b) phenomena
(c) phenomenons

Random Topics:
Adjective & AdverbsPresent Perfect and Past SimpleTransitionsAdverbs (manners & modifiers)Noun Phrases and Verb PhrasesGerunds and InfitinitivesModals with Perfect InfinitiveNoun, Verb, AdjectiveGrammar: Imperative and Exclamatory SentencesModals and Past ModalsOther quiz:
There vs. It › ViewThe following is correct. A: Hey! How was your vacation? Did you have fun? B: No! It was terrible. Joe and I had a big fight, then in rained the whole time!
A. True
B. False
Grammar › View
We _____ a great vacation last summer.
A. had
B. were having
C. have had
D. have
Mix-Tenses › ViewI’m so hungry, I _________________a sandwich
A. make
B. do
C. will make
D. will done
Grammar › View
__________________ is very bright tonight.
A. The sky
B. Sky
C. A sky
D. Skies
