Scientists have long struggled with how to measure the effects of climate change on wildlife. This is especially true for birds flying in and out of coastal areas bordering the Arctic Ocean. In the past, researchers depended mainly on information gathered by satellite to follow the movement of birds and animals. But this method can be costly and result in huge amounts of information, which can be difficult to process.

Now scientists are turning to another kind of technology to help them follow birds and other wildlife. Songbirds are especially difficult to study in the wild. They can fly across thousands of kilometers and their bodies are too small for electronic tracking devices.

A new report tells about a project in which researchers recorded songbirds and then put the sounds into a computer program to be studied. The researchers created machine learning algorithms with the ability to focus on bird calls while ignoring other noises. The algorithm helps improve the likelihood of predicting the correct result. Similar machine learning methods have been used to recognize human speech.

Choose the best answer A, B, C or D to complete the sentences.

1. People will take .......... of robots to do household chores.

2. Many people think that robots will make workers .......... .

3. It is certain that robots will .......... the quality of our lives.

4. With healthier .......... and better medical .........., people will have a longer life expectancy.

5. Many people think the cyberworld will .......... the real world.

6. The invention of penicilin is very useful because it has .......... lots of lives.

7. It is said that in a couple of decades, we .......... telepathy and holography.

8. Mars is named ..........the Roman God of war.

9. By 2050 we .......... in smart homes.

10. The Earth seems too small to .......... the increasing population.

Viết lại câu, sử dụng nhưng không thay đổi từ in đậm trong ngoặc đơn, để ý nghĩa vẫn giữ nguyên

1/ nobody told me about it. (not)

2/ I don't like pupils asking stupid questions. (being)

3/ she does't like the others laughing at her. (laughed)

4/ the boss had his secretary type all these letters. (typed)

5/ the emloyed the workers to repair their house (had)

6/ they say the elephant never forget (forget)

7/ I don't want the others think of me as a burden (thought)

8/ people thought that he killed his wife (been)

9/ people believe that 13 is unlukey number (be)

10/ people expect that the strike will begin tomorrow (begin)

11/ I remember that some one give me that shirt on my birthday (remember)

12/ he recommeded using secondhand clothes (should)

13/ john made me leave soon (I)

14/ it's your duty to do homework before class-time (you)