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

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4. Choose the best option A, B, C or D to complete the sentences
1. Viet Nam today is experiencing tremendous growth and over the last decade,
... one of the strongest economies in Asia
A. have boasted
B. has boasted
C. is boasted
D. are boasted
2. In the past. Most of the school students didn't often wear uniform like they
.. today
A. did
B. had
C. do
D. are
3. Vietnamese people's quality of life has been . . improved year by year
A. significantly
4. The traffic system in our city
A. had gradually been upgraded
C. has gradual been upgraded
5. Many foreigners were astonished that Ha Noi city was quite . . what
they saw five years ago
B. significant
C. signify
D. significance
... in the last decade
B. has gradually upgraded
D. has gradually been upgraded
A. different on
B. different from
C. different of
D. different about
6. There.....
many recent breakthroughs in technology. Now
consumers can purchase the latest high tech toys. This was not possible even a
few years ago
A. are
B. had been
C. have been
D. has been
7. Many cities cannot easily create more parks because most land is already
for buildings, roads, parking lots, and other essential parts of the
urban environment
C. using
A. being used
8. Technology has led to a shift in . . Prior to this, our high tech phones
were not possible
A. how we did thing
C. how we do thing
B. used
D. getting used
B. how we did things
D. how we do things