Choose the best answer that best completes each sentence.
The instructions are rather __________. The children can hardly understand them.




A.embarrassed
B.embarrassing
C.confusing
D.confused

The word “it” in paragraph 3 refers to______




A.feature
B.glass
C.manner
D.viscosity

According to the passage, how is glass that has cooled and become rigid different from most other rigid substances?




A.It has an interlocking crystal network.
B.It has an unusually low melting temperature.
C.It has varying physical properties.
D.It has a random molecular structure.

The United States spends more money on the economic crisis _ _ _ _ _ __ country in the world.




A.other
B.other than
C.than any other
D.while other

A.I ’d
B.AIDS
C.played
D.paid

A.production
B.deficient
C.ancient
D.sufficient

The phrase “the one” refer to the ____________.




A.chimpanzee
B.pair
C.ability
D.study

What did researchers discover in the study of honeybees discussed in paragraph 2?




A.Bees are able to travel at greater speeds than scientists thought.
B.The bees were able to determine in advance where scientists would place their food.
C.Changing the location of food caused bees to decrease their dance activity.
D.The bees could travel 25% farther than scientists expected.

James hates his new job. It's such a different field and he feels like ________.




A.in hot water
B.a fish out of water
C.a big fish in a small pond
D.water off a duck's back

Not having written about the environment topic, ________a low mark.




A.the teacher gave
B.I was given
C.my presentation was given
D.the teacher gave me