Birds are very light. Their bones are hollow. They have thin follow. Their bones are light, too. Even the bones of their skull are almost weightless. That is why birds can fly.

1. What are talked about in every sentence?

A. Birds

B. Bones

C. Skulls

D. Heads


2. What does the whole paragraph say about the birds?

A. Birds are heavy.

B. Birds have bones.

C. Birds are very light.

D. Birds have thin skulls.


3. Which sentences give details about the paragraph?

A. 1st sentence

B. 1st - 2nd sentences

C. 2nd-6th sentences

D. 1st-3rd sentences


4. What do you call this sentence? Birds are very light.

A. Conclusin

B. Key sentence

C. Heading sentence

D. Summary sentence


5. In the given passage, where is the key sentence found?

A. End

B. Middle

C. Beginning

D. Second sentence