[ Grammar and Idioms ]
His explanation was so ___ that no one could follow it.
A. complexity
B. complex
C. complicate
D. complicatedly

Random Topics:
Modals with Perfect InfinitiveQuantifiers / Prepositions of Time and Comparative AdjectivesSimple Present and Present Continuous TensesVocab CheckingPassive Modals, Impersonal PassiveComplex PrepositionsGerunds, Infinitives and ParticiplesConjunctions & PrepositionsRun-On SentencesPast Continuous Tense & Past ModalsOther quiz:
Present Perfect Tense › ViewHave you ever _______in a chair for six hours?
A. sit
B. sat
C. sitten
D. sitting
Homophones › View
There are many fish in the (sea, see).
A. Sea
B. See
She ____________ (live) in London for five years.
A. was living
B. has been living
C. lived
D. have lived
Grammar - Quantiflier › View
Hurry up! I can’t wait— longer. I have —– things to do.
A. any, few
B. much, much
C. any, many
D. a little, many
