[ Vocabulary ]
What are atoms of the same element that have different numbers of neutrons?
A. aluminium
B. radioactive dating
C. isotope
D. hydrogen
Random Topics:
Past Perfect and Past Perfect ContinuousPresent Tense vs Past Tensewill, be going to, would like toConditional and Mix Conditional SentencePrepositions of Location, Movement and TimeWill and Will notReporting VerbsTenses PracticeAdjective or AdverbComparativeOther quiz:
Grammar › ViewLater he tells her they could go out to dinner again
A. low probability
B. obligation
C. suggestion
D. certainty
Tenses › View
She had forgotten her purse.
A. Simple Past Tense
B. Past Continuous Tense
C. Past Perfect Tense
D. Past Future
Subject Verb Agreement › View. Neither of the solutions (works / work) for the problem.
A. works
B. work
Few vs. Little › View
Let’s go outside for ___ fresh air.
a. a little
b. a few