[ Grammar ]
The migratory birds __________ before the temperature dropped.
A. had left
B. has left
C. left
D. leaved

Random Topics:
Modals and InversionModal VerbPossessive NounsReported Speech and Reported QuestionsPast and Present ContinuousPresent simple, Present continuous, Singular, PluralAbilitySentences vs Run-OnsIf Conditional Zero and OneModal Verbs for PossibilityOther quiz:
Grammar › ViewThere ……… be lots of people in the park
A. will
B. do
C. are
Tenses › View
We ___ to Japan next summer.
A. travel
B. will travel
C. are traveling
D. traveled
Grammar › View(near) ………… computer is easy to use.
A. this
B. that
C. these
D. those
Grammar › View
What is he doing in the garden ?
A. He is playing cards
B. He is planting flowers
C. He is eating
