[ 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:
Grammar › ViewWhile he _______________ on the computer, he forgot to save his work.
A. was working
B. worked
C. working
Vocabulary and Grammar › View
Stong currents took them to the USA, Alaska , Japan, Australia and south America.
A. TRUE
B. FALSE
Past Tense › ViewAfter she …………………………. her breakfast, she went to work.
A. was eating
B. had eaten
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