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WorksheetsPractice - Structure TOEFL [Skill 9-12]
Total questions: 10
Worksheet time: 8mins
1. Dolphins form extremely complicated allegiances and_____ continually change.
enmities that
that are enmities
enmities that are
that enmities
2. Scientists are now beginning to conduct experiments on_____ trigger different sorts of health risks.
noise pollution can
that noise pollution
how noise pollution
how noise pollution can
3. The Apollo 11 astronauts_____of the Earth’s inhabitants witnessed on the famous first moonwalk on July 20,1969, were Neil Armstrong and Buzz Aldrin.
whom
whom millions
were some
whom some were
4. At the end of the nineteenth century. Alfred Binet developed a test for measuring intelligence _____ served as the basis of modern IQ tests.
has
it has
and
which has
5. _____have at least four hours of hazardous materials response training is mandated by federal law.
All police officers
All police officers must
That all police officers
For all police officers
6. A cloud’s reservoir of negative charge extends upward from the altitude at_____ the freezing point.
temperatures hit
hit temperatures
which temperatures hit
which hit temperatures
7. In a 1988 advanced officers’ training program, Sampson developed a plan to incorporate police in enforcing environmental protection laws whenever ____feasible.
it is
is
has
it has
8. _____will be carried in the next space shuttle payload has not yet been announced to the public.
It
What
When
That
9. During free fall,_____up to a full minute, a skydiver will fall at a constant speed of 120 m.p.h.
it is
which is
being
is
10.The fact_____the most important ratings period is about to begin has caused all three networks to shore up their schedules.
is that
of
that
what
