[ Passive Voice and Modals ]
Marie Curie discovered _________________________.
A. poland and radium
B. polonium and calcium
C. polonium and radio
D. polonium and radium

Random Topics:
How much and how manyThings in EnglishGrammar for TOEFLTemporal Conjunctions and ConnectivesNoun and Modal VerbsRegular Plural NounsConditional Type 1Modal Verb Gerund or To InfinitiveCompound and Complex SentencesIN, ON & ATOther quiz:
Grammar › ViewShe behaved ______ she were the boss.
A. whenever
B. seems like
C. what
D. as if
Adverbs › View
My friend is a ______ person
A. nice
B. nicely
Grammar › ViewSiti __________ Rina are in the Recycling Campaign Committee
A. or
B. so
C. but
D. and
Vocabulary › View
My internet service was ___ because I didn’t pay the bill
A. beehive
B. colony
C. cut off
