[ Grammar ]
When Marie Curie discovered radium, the elements’ properties and potential were not fully understood.
A. NO CHANGE
B. the elements property’s and potential
C. the element’s properties and potential’s
D. the element’s properties and potential
Random Topics:
Vocabullary TestModals of ObligationAdverb ClauseOffering HelpPast and Past ContinuousModals and ConditionalsZero ConditionalIndependent/Dependent Clauses & Relative ClausesVerb + InfinitiveGrammar: MorphologyOther quiz:
Grammar › ViewI told John not to drive, because he _____ all night.
A. drank
B. was drinking
C. had drunk
D. had been drinking
Grammar › View
We __________to get up early when we lived in the countryside.
A. not used
B. didn’t use
C. don’t use
D. doesn’t use
Past Simple Vs. Present Perfect › ViewLucy _______ her leg, so she can’t come skiing.
A. Has broken
B. Broke
C. Have broken
Adverbs of Frequency › View
The closest in meaning to rarely is:
A. sometimes
B. seldom
C. frequently
D. never