单项选择题

Questions 23 to 25 are based on the conversation you have just heard.

A．It will travel at a speed close to that of light.
B．It may bring a lot of nuclear pollution to the space.
C．It can save a lot of earth’s energy.
D．It may hold more people in the spaceship.
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单项选择题
A．She forgot to study for the exam.B．She had planned to go to the movie.C．The man should have invited her to the movies.D．The man should have studied for the exam.
A．She forgot to study for the exam.
B．She had planned to go to the movie.
C．The man should have invited her to the movies.
D．The man should have studied for the exam.
单项选择题
Why do many Americans go abroad for holiday
A．To learn new languages.
B．To learn more and relax themselves.
C．To enjoy better climate.
D．To see new sights and make new friends.
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