[ Tenses ]
The scientist _______ with different chemicals to find the perfect formula for the new medicine.
A. encourage
B. experimented

Random Topics:
Past Perfect Simple & ContinuousAdjectives and comparisonsPast Tense and NeutralPronouns ( Interrogative )Question TagsAdjectives & AdverbsIf ConditionalsTransitive and Intransitive VerbGrammar-Present Continuous-Sentence MakingVerb Present Simple TenseOther quiz:
Tenses › ViewThey will meet us at the cafe tomorrow.
A. Present Simple
B. Present Continuous
C. Past Simple
D. Future Tense
Grammar › View
They ____ all the snacks before the movie started.
A. eat
B. ate
C. eats
D. eating
