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6 11.6.2 Fill in: a/an, the or- .1 experiment can help a researcher provetheir theory2 antibodies exist in our blood.3 The project gives free medical care to poor.4 lab is where scientists conductexperiments.5 knowledge is the foundation on whichscience was built.
Ответы
1) -
2) an
3) the
4) a
5) a
Объяснение: пиши на свой страх и риск