[ Tenses ]
Birds ________ their nests in the summer and (fly) __________ to the south in winter.
A. build – are flying
B. build – fly
C. build – have flown

Random Topics:
Aspect or tenses of VerbsNoun ClausesFirst and Second ConditionalPresent simple or Past simplePrefixes SuffixesModal and Modal PerfectSimple Present and Present ContinuosAdverbs or AdjectivesUnless If First ConditionalReported - GerundOther quiz:
Passive Voice › ViewThe house _________________(build) in 1645.
A. The house is built in 1645.
B. The house was built in 1645.
C. The house has been built in 1645.
Tenses › View
This story is based on true events that … many, many years ago in Scotland.
A. happened
B. were happening
C. had happened
Tenses › ViewI ———————- the examination last year.
a) Take
b) Took
c) Had taken
d) Have taken
Grammar › View
Where is the stressed syllable of the word: im-por-tant
A. First
B. Second
C. Third
