[ 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
Select your answer:

Random Topics:
WishesTo Infinitive/Bare Infinitive/GerundsPresent Simple PassiveIf ClausesFuture - be going toPreposition & Relative ClausesAdverbial Clause of Cause and EffectPrepotitionsTimeModals, Conditionals, and Clauses- Defining, Non-definingOther quiz:
Grammar › View‘Stop making excuses,’ they told me.
They told me ______.
A. to stop making excuses.
B. to stopping making excuses.
Grammar › View
This is the ____________(interesting) book I have ever read.
A. interest
B. most interesting
C. more interesting
D. most interest
