A．Why stars move so quickly.B．Why few stars have planets.C．Why stars aren't moving tow
A. Why stars move so quickly.
B. Why few stars have planets.
C. Why stars aren't moving toward one another.
D. Why stars haven't moved farther apart.
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The author's attitude toward American studies in France can be best described as ______ .
A. satisfied
B. hopeful
C. disappointed
D. doubtful
By focusing on the interesting, ______ the significant, the penny press newspapers of the
A. which does not necessarily
B. not necessarily
C. was not necessarily
D. nor necessarily being
A．She expects the weather to be nice next weekend.B．She forgot she had so much studyin
A. She expects the weather to be nice next weekend.
B. She forgot she had so much studying to do.
C. She usually hands in her assignments early.
D. She won't have much time to study later.
Which of the following occurred as the ices from Halley's Comet evaporated？
A. Black dust was left on the comet's surface.
B. The nucleus of the comet expanded.
C. The tail of the comet straightened out.
D. Jets of gas caused the comet to increase its speed.
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