[ Tenses ]
They were watching TV when I arrived.
A. Present Continues
B. Past Continues
C. Present Perfect
D. Simple Past

Random Topics:
Finite and Non-Finite VerbPronounWh- Questions Present Simple TenseNouns, Articles, DeterminersGrammar - may & mightNoun QuantifiersSuperlativesVerb 3 formsConnectorsSimple vs Present Continuous TensesOther quiz:
Grammar - Collective Nouns › ViewA _____ of dancers is performing on the stage now.
A. team
B. group
C. gang
D. troupe
Perfect Modals › View
Last night, I went to the cinema with some friends. We had been planning the trip for weeks, but when we arrived, we realized that we ________ (1) bought the tickets online.
A. should have
B. might have
C. must have
D. could have
Phrasal Verb › ViewWhat does the phrasal verb ‘look into’ mean?
A. To investigate or examine closely
B. To look away
C. To look after
D. To look up
Grammar › View
The river is ________ the bridge.
A. over
B. under
C. above
D. beside
