1/ Carbon 14 dating is a method of ____________ that can show how old an object is . (ANALYSE) 2/ ___________ use complex ma

1/ Carbon 14 dating is a method of ____________ that can show how old an object is . (ANALYSE)
2/ ___________ use complex machines called spectrometers in the process .(RESEARCH)
3/ By examining the quatities of carbn 14 in organic material ,they can reach a very precise ___________ o its age. (CONCLUDE)
4/ However , the ________ of the test is important to be sure of the result . (REPEAT)
5/ With this method ,archaeologists have obtained________ of the age of many artefacts .(PROVE)
6/ The opposite is also true : some object once _______________ to be historical have turned out to be fake! (THINK)
-IELTS



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