. Choose the sentence with correct perfect tense:
A. The birds had flown south before winter came.
B. The birds fly south now.
C. The birds are flying south.
D. The birds flew south yesterday.

Random Topics:
Continuous TensePresent Tenses: Simple vs ContinuousGrammar - QuantiflierAdverbial Clauses of Manner and ResultGrammar on ConditionalsRelative Clauses and etcThird ConditionalPreposition and Preposition PhraseConstrative ConjunctionPresent Tense vs Present ContinuousOther quiz:
Phrasal Verb › ViewWe waited for hours, but she never _______________! She had better have a very good excuse.
A. take up
B. show up
C. break up
D. back up
Vocabulary and Grammar › View
My friend bought me a ticket for last night’s concert, so I ______________ buy one.
A. didn´t need to
B. doen´t need to
C. must need
D. must
Personification › ViewWhich of these sentences contains personification?
A. Vines crept slowly up the sides of the birdhouse.
B. Slow-growing vines soon covered the sides of the birdhouse.
C. Vines were growing slowly next to the birdhouse.
Grammar › View
Choose the correct connector to complete the sentence.
We decided to walk ___________________ it was raining.
_____
A. even though
B. instead of
C. apart from
