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TOEFL Structure - Test 13

Choose the word or phrase that best completes the blank in each sentence

1-	Before 8000 B. C. wheat did not grow as prolifically ___ it does today.
	A -	like
	B -	as
	C -	for
	D -	than
2-	Both nickel and iron are whitish metals ___.
	A -	that are attracted by magnets
	B -	that magnets are attracted by them
	C -	are attracted by magnets
	D -	magnets that attract them
3-	The bark of some species of oak trees yields a substance used in ___ leather.
	A -	treating
	B -	to treat
	C -	its treatment
	D -	it treats
4-	Although phosphorus is an essential constituent of all living creatures, ___is among the least abundant of the mineral nutrients.
	A -	what
	B -	it
	C -	still
	D -	however
5-	___ angles of any triangle always add up to 180 degrees.
	A -	If three
	B -	The three
	C -	Three of
	D -	Three are
6-	The gibbon ranges over ___ other apes do.
	A -	than an area wider
	B -	wider than the area
	C -	a wider area than
	D -	an area wider than are
7-	Sarah Frances Whiting opened the ___ of physics in the United States in 1878.
	A -	undergraduate teaching was in a second laboratory
	B -	second teaching laboratory of undergraduate
	C -	undergraduate teaching laboratory was second
	D -	second undergraduate teaching laboratory
8-	___, some of the Earth’s interior heat escapes to the surface.
	A -	A volcano erupts
	B -	A volcano whether erupts
	C -	A volcano erupts it
	D -	If a volcano erupts
9-	Sandra Day O’Connor, the first woman member of the United States Supreme Court, believed that the courts should interpret the laws ___ legislate.
	A -	than attempt to rather
	B -	rather than attempt to
	C -	to attempt rather than
	D -	attempt rather than to
10-	___ of minerals, which are chemical elements or compounds of varying purity.
	A -	The consistency of rocks
	B -	Rocks, consisiting
	C -	Rocks consist
	D -	Whereas rocks consist

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