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UNiT 5 Review the Grammar

Charts 1 Complete the blog post. Use the present perfect or the simple past form of the verbs in
5.1–5.3, 5.4, parentheses. For some items both forms are correct.
5.6, 5.7

A Change in the American Dream

Sunday, January 25
For years, many Mexicans (1) have left (leave) Mexico to come to the

United States. However, in recent years, more and more Mexicans in the United States
(2) (return) home to Mexico. In 2011, around 400,000 Mexicans

(3) (leave) the United States and (4) (return)
to Mexico.

The number of people leaving Mexico for the United States (5)

(fall) lately, too. According to some research, 404,000 Mexicans (6)
(leave) their country for the United States in 2010. Just four years earlier, in 2006, that

number (7) (be) over one million. Experts (8)
(discuss) the reason for this change, but not everyone agrees on the answer.

Charts 2 Circle the correct words to complete the reader’s response to the blog post in exercise 1.
5.1, 5.4,
5.6–5.8, 5.10

Tuesday, January 27

A very interesting blog post, thank you. I actually have some personal experience
with this subject. I (1) have known / knew my friend Carlos Mendoza (2) since / for 2005.

He (3) left / has left his hometown in Mexico when he was 18. Like many other young
Mexicans, he (4) crossed / has been crossing the Rio Grande and came to the United

States because he wanted to find work. Carlos (5) settled / has been settling in Arizona
in 2004, where he started his own cleaning service. His business was very successful, but

Carlos (6) didn’t clean / hasn’t been cleaning houses for a year now. While he was in the
United States, he (7) saved / has saved his money. Now, he (8) has gone / has been going

back to Mexico to open his own store. Carlos (9) sent / has been sending me e-mails
regularly (10) for / since several months. I wish him all the best!

UNIT 5 RevIeW The GRAmmAR 151
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