Birds ________ their nests in the summer and (fly) __________ ...

[ 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:

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If a TV series is LONG-RUNNING, it …

A. has been around for years

B. understand the main point

C. is very beautiful

D. is a dissapointment

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I’ve been here / 3 o’clock.

A. for

B. since

C. yet

D. already

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