听下面一段独白,回答以下小题。
(1)
Who first traveled around the moon before human beings?
A . Dogs.
B . Monkeys.
C . Tortoises.
(2)
Why were the creatures studied after returning to earth?
A . To see how they were affected.
B . To examine where they were affected.
C . To find out whether they were affected.
(3)
What caused the main changes in the creatures?
A . The space travel.
B . A lack of food.
C . Loss of appetite.
(4)
What happened in October 1948?
A . Two dogs landed in the Indian Ocean.
B . Mice helped people explore space.
C . Monkeys were sent into space.
答案: C
A
B
C