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Ngọc Thy

1. Scientists have made many important new .......of the depth by using modern devices.(discover/ discoveries)

2. Community police have made a very positive.............to crime prevention.(contribute/ contributions)

3. They are investigating the............disappearance of a young woman. (Mystery/mysterious)

4. By the age of eighteen he was completely...........of his parents.(dependence/ dependent)

5. The...........of the seabed is being carried out (investigate/ investigation)

B.Trâm
14 tháng 4 2020 lúc 10:11

1. Scientists have made many important new .......of the depth by using modern devices.(discover/ discoveries)

2. Community police have made a very positive......contribution.......to crime prevention.(contribute/ contributions)

3. They are investigating the............disappearance of a young woman. (Mystery/mysterious)

4. By the age of eighteen he was completely...........of his parents.(dependence/ dependent)

5. The...........of the seabed is being carried out (investigate/ investigation)


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