TO BUILDING THEIR NESTS, TAILOR - BIRDS USE THEIR BILLS AS NEEDLE...

373. - 2000 CAU TRAC NGHIEM ANH A B C
2000 CAU TRAC NGHIEM ANH A B C

373. To building their nests, tailor - birds use their bills as needles.

a. building

b. nests

c. their

d. as

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