What is the author's attitude toward changes brought on by technological innovations？
A. He is excited about them.
B. He accepts them as natural.
C. He is disturbed by them.
D. He questions their usefulness.
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The mountain place is beautiful, but______the working conditions, it is terrible.
A. when mentioned
B. when it comes to
C. when it is said
D. when it dies to
The original home of the President needed to be rebuilt______.
A. because John Adams' wife did not like it
B. because it was cold in winter even with 50 fireplaces
C. because it had burned down during the war
D. because George Washington was not willing to live in it
On their way of cattle drives, the cowboys protected the cattle by______.
A. burning a mark on their cows
B. keeping an eye on catde thieves
C. making the trip more dangerous
D. looking after eight cows each person
Which of the following statements is TRUE according to the passage？
A. Information in short term memory is different from that in long-term memory.
B. Long-term memory can be achieved only by training.
C. It is easier to test short-term memory than long-term memory.
D. Henning gave a separate test on vocabulary to his students.
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