[ 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 › ViewThat’s the best speech _________
A. I ever heard
B. I didn’t hear
C. I used to hear
D. I’ve ever heard
Grammar › View
Identify all the nouns in the sentence.
The puppy barked at the boys.
A. puppy
B. boys
C. barked
D. puppy, boys
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