[ Vocabulary ]
He then worked on peaceful applications of __________ that can substitute fossil fuel for a clean environment.
A. navigation
B. mantle
C. mutations
D. nuclear energy.
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Modals for Ability, Possibility and PermissionAuxiliary and Modal VerbsFirst Conditional & Future TensesModals and InversionPresent Simple and Past ContinuousTOEICVocabulary and IdiomsCountable - UncountablePast Tense, Recount Text, and Future TenseSuffixes and TensesOther quiz:
Vocabulary › ViewWhich word means the end of an individual’s life?
A. birth
B. death
C. behavior
D. life cycle
Present Continuous Tense › View
Who … next to your boss?
A. Is sitting
B. Sitting is
After she …………………………. her breakfast, she went to work.
A. was eating
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C. ate
Grammar › View
There are a lot of tickets left, so you__________pay for the tickets in advance.
A. mustn’t
B. won’t
C. should
D. don’t have to