Which of the following is true？
A. Scientists have a sound knowledge about the diversity of species.
B. Scientists don't know much about the number of stars in the galaxy.
C. Scientists show more interest in stars in the galaxy than in species on Earth.
D. Scientists don't agree on the number of species in the world.
查看答案
In which of the following groups is the discovery of new species not mentioned in the passage？
A. Birds.
B. Monkeys.
C. Trees.
D. Freshwater fish.
A．anB．theC．aD．/
A. an
B. the
C. a
D. /
听力原文：M: Do you know when John's birthday is？
W: May 12, five days earlier than John's.
Q: When is John's birthday？
(2)
A. May 5.
B. May 17.
C. May 7.
D. May 15.
Which is NOT true about e-mail？
A. It is sent through the telephone line.
B. It is good for family relationship.
C. Only people good at writing like e-mail.
D. E-mail is becoming very popular in people's life and work.
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