There is so littke different ........... the twins that no one an tell one from the other.
A.among
B.with
C.to
D.between

The schoolboy was accused .......... starting the fire.
A.for
B.before
C.of
D.to

They always blame Mike .......... everything.
A.for
B.into
C.to
D.about

Where does the following sentence best fit in the passage? With the data from this larger rocket blast, scientists hope establish conclusively the presence or absence of water on the Moon.
A.A
B.B
C.C
D.D

Apart from the development of personal computer, what is the Apollo program credited with?
A.The invention of the Internet.
B.The design of spacecraft.
C.The scientists of the program.
D.The space explorations.

What remains a great concern for space scientists?
A.The availability of water on the moon.
B.The cloud of vapor on the moon
C.The rockets crashing into the lunar surface.
D.The techniques of sending the spacecraft to the moon.

Which of the following is NOT True about NASA in 1960s?
A.It is an American agency.
B.It conducted research on space and space exploration.
C.It invented circuits.
D.It used a large number of circuits.

What is considered the biggest contribution of the Apollo moon landings?
A.They had important influence on technological advance.
B.They initiated research on computer.
C.They helped invent the integrated circuit.
D.They collected a wide range of soil and rock samples.

What can be inferred about the difference between the first and the second moon landing?
A.In the second one, astronauts did not collect lunar rocks.
B.In the first one, astronauts stayed longer on the moon.
C.The first one demonstrated scientific advancement.
D.The second one was not a great achievement in itself.

The author says that the scientists found the discovery of household cat skeleton __________ .
A.handled with care
B.interesting
C.nothing new
D.meaningless