[ Grammar ]
Robert Ballard invented an underwater robot. Which ones are the nouns?
A. Robert Ballard, robot
B. Robert Ballard, underwater
C. invented, robot
D. Robert Ballard, invented

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Adjectives & PrepositionSynonymBe used to vs used toModals "Should"Passive Voice & Tenses-ed/-ing AdjectivesSimple Past - Irregular VerbsPhrase or ClauseConditional Sentences Type I, IIConditional Sentences and Verb FormOther quiz:
Grammar › ViewVocabulary:
Ancient people ____ the statues with small stones.
_____
A. speculated
B. figured out
C. revealed
D. carved
Grammar › View
it was ___ to the shops than i expected
A. far
B. farer
C. farther
D. farthest
Future Tenses › ViewI’m leaving now, I ____ call you when I get there.
A. will
B. am going to
Modals and Modal Perfects › View
We didn’t have to study for the test.
A. We forgot to study.
B. We were prepared for the test.
