1. _________ team sports require cooperation.
A) Of all B) They are allC) All D) Why are all
2. Ceramics can be harder, light, and more resistant to heat than metals.
A BC D
3. Not everyone realizes that the most largest organ of the human body is the skin.
A B CD
4. Clifford Holland; ________ civil engineer, was in charge of the construction of the first tunnel under the Hudson River.
A) he was a B) a C) being a D)who was, as a
5. Mold is extremely destruction to books in a library.
A B C D
6. Perhaps humans’ first important musicalinfluence were the songs of birds.
A B C D
7. Frontier surgeon Ephraim MacDonald had to performoperations ____________ anesthesia.
A) no B) not having C) without D) there wasn’t
8. ______________, her teaching, and her writing, Marta Cadrilla de Martinez helpedpreserve the traditions and customs of the native Puerto Rico.
A) Through her research B) Her research
C) By researching D) Her doing research
9. The techniques ofscience and magic are quite different, but their basic aims--
to understand and control nature--- are very similar.C D
10. It was in a cave near Magdalena, New Mexico when the oldest known ears of