根据以下资料，回答1~4题。

First, the spotted owl was threatened by logging in the Pacific Northwest．Now it's in danger from a new enemy, the barred owl．Barred owls have been moving to the Northwest from the eastern part of the United States．Stan Sovern has studied spotted owls．Now when he calls for spotted owls, barred owls are starting to appear．Sovern threw a mouse on the ground, and a barred owl grabbed it.

Scientists have learned that spotted owls start to vanish when barred owls come．Some barred and spotted owls have mated and produced hybrid babies．One spotted owl was killed by a barred owl.

Professor Ned K．Brown of the University of California-Berkeley says, "In some areas of Washington, the barred owls moved into very dense, deep woods．The same kind of woods that arc opened up, or destroyed by logging, that adversely influences the spotted owls."

Ten years have passed since the federal government began protecting the spotted owl．Loggers were forced to limit logging on seven million acres of government land．No one is sure how the arrival of the barred owls will impact laws that protect spotted laws．The barred owls like to live in the deep forests where loggers like to cut down trees．The barred owls will likely keep migrating to the Northwest.

Scientists learned about the barred owl migration by __.

你(Li Yuan，TeL：78790765)刚从海边度假回来，对旅行社所定的旅馆及其服务不满意。因此决定给该旅行社的经理写封抱怨信。信的内容包括：

(1)说明不满意的具体事件。

(2)提出改进建议或赔偿要求。

请在第_______处填上正确答案。

请在第_______处填上正确答案。

根据以下资料，回答1~5题。

请在第_______处填上正确答案。

This passage is

If someone is retired and only wants to work at weekends with easy responsibilities like answering the telephone, where he or she should call to get more information for the position?

Which position does mention that computer skill is not needed?

根据以下资料，回答17~20题。

Read the following:

1．Needed: Full time secretary position available．Applicants should have at least 2 years experience and be able to type 60 words a minute．No computer skills required．Apply in person at United Business Ltd., 17 Browning Street.

2．Are you looking for a part time job? We require 3 part time shop assistants to work during the evening．No experience required, applicants should between 18 and 26．Call 366-76564 for more information.

3．Computer trained secretaries: Do you have experience working with computers? Would you like a full time position working in an exciting new company? If your answer is yes, give us a call at 565-987-7832.

4．Teacher Needed: Tommy's Kindergarten needs 2 teacher/trainers to help with classes from 9 a.m．to 3 p.m．Applicants should have appropriate licenses．For more information visit Tommy's Kindergarten in Leicester Square No．56.

5．Part Time work available: We are looking for retired adults who would like to work part time at the weekend．Responsibilities include answering the telephone and giving customer's information．For more information contact us by calling 897-980-7654.

6．University positions open: The University of Cumberland is looking for 4 teaching assistants to help with homework correction．Applicants should have a degree in one of the following: Political Science, Religion, Economics or History．Please contact the University of Cumberland for more information.

Which position is best for Margaret Lillian who is 21 years old and would like a part time position to help her pay her university expenses? She can only work in the evenings．

The ending of the passage is __.

The young soldier told the instructor that __．