[ Grammar ]
When I …….there, he was working
A. Arrive
B. Arrived
C. To arrive
D. Arriving

Random Topics:
Modals for Advice, Obligation/Prohibition, Necessity and Lack of NecessitySimple Present and Past TenseArticles & PrepositionSpeculation with Modal VerbsPresent Simple Tense PassiveCardiology ServicesMain Idea and Sentence StructureZero and First ConditionalsRelative Clauses PronounsGerunds & Infinitives + VocabularyOther quiz:
Vocabulary › ViewScientists think that wild animals must ____________ in their natural habitats.
A. keep
B. to keep
C. be keeping
D. be kept
Grammar › View
Anna is a good golf player but she (not to play) very often.
A. don’t play
B. not plays
C. doesn’t play
D. plays
The mangoes are sweet. Please eat _______.
A. it
B. her
C. them
D. him
Present Continuous Tense › View
Is she … flower-arranging at the flower show now?
A. Learn
B. Learning
