The new Mars rover moves __________ than the older model.
more efficiently
efficientlier
more efficient
most efficiently
Our school telescope does not focus __________ as the observatory’s telescope.
accurate
more accurately
as accurately
most accurately
Of all the robots in the competition, Luna collected the samples __________.
the most careful
more carefully
the most carefully
carefulliest
The smaller satellite travels __________ than the large space station.
more fast
more faster
faster
fastest
Maya explained the solar system __________ than I did.
most clearly
more clearly
clearer
more clear
The old rover did not climb the rocky hill __________ as the new one.
more easily
as easily
easy
the easiest
Of the three astronauts, Leo completed the experiment __________.
the quickest
the most quickly
quicklier
more quickly
This new computer analyzes information __________ than our classroom tablet.
more efficient
efficiently than
most efficiently
more efficiently
The first rocket landed __________ than the second rocket.
less safely
less safe
more unsafe
least safely
Our science group worked __________ than the other groups on the space project.
more carefully
carefuller
more careful
most carefully
The newest telescope can observe distant planets __________ than the old telescope.
more well
better
best
gooder
The student-built rover moved __________ of all the machines.
slower
the most slow
the slowest
more slowly
Nina answered the astronaut’s questions __________ than her classmates.
most confidently
more confident
confidentlier
more confidently
The Moon robot did not perform __________ the Mars robot.
as good as
as better as
as well as
the best
Of all the teams, our group described the alien planet __________.
creativeliest
more creatively
the most creative
the most creatively
The second space probe sent its messages __________ than the first probe.
most regularly
more regularly
more regular
regularlier
