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2 CHECK. Correct the error in each statement to make it true according to the article.

1. Salopek is walking to follow the path of animal migration out of Africa.

2. Salopek walked across Ethiopia alone.

3. People can follow Salopek’s journey by reading his newspaper articles.

4. Salopek sometimes feels lonely during his journey, and this may stop his future travels.

3 DISCOVER. Complete the exercises to learn about the grammar in this lesson.

A_ Read each sentence. Then choose the sentence that is closest in meaning.

1. If Salopek had kept his newspaper job, he would never have begun this incredible journey.
a. He was able to begin the journey because he didn’t keep his newspaper job.

b. He didn’t begin the journey because he had to continue working for the newspaper.

2. Ifthe guides hadn't been so knowledgeable, he could never have learned as much as he did.
a. Because the guides weren’t very knowledgeable, he had to learn everything on his own.

b. Because the guides were very knowledgeable, he could learn a lot from them.

3. Posting messages wouldn't have been possible without modern technology.
a. Posting messages wasn’t possible because Salopek didn’t take along electronic devices.
b. Electronic devices made it possible for Salopek to post messages.

4. There might be days when Salopek wishes he had never left home.
a. There might be days when Salopek regrets that he left home.
b. There might be days when Salopek feels he couldn't have left home.

B_ Look at sentences 1-4 in exercise A again. Then choose the correct answer for each
question,

1. What time period do the sentences 1-3 refer to?

a. the past b. the present c. the future

2. What verb form is used in the if clause in sentences 1 and 2?
a. the simple past b. the simple present QO . the past perfect

3. What verb form is used in the main clause in sentences 1 and 2?

a. would/could + verb b. would/could have + past participle QO . the past perfect

4. What verb form is used after wish in sentence 4?
a. the simple past b. the simple present QO . the past perfect

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