1. The number of cars saw a gradual decrease over the period from 1990 to 2000.

2. the year 2005 witnessed a significant decrease in the research investment.

3. the sales of mangos fell slightly in 2006.

4. there was a slight decrease in the quality of food in supermarkets.

5. 1988 witnessed a quick drop of $3 million in sugar imports.

6.  The price of laptops dropped quickly over the period.

   -> a quick drop was seen in the price of laptops over the period

7. the number of visitors to the website witnesses/saw/experienced an upward/downward trend

8. there was a wild fluctuation in the growth rate throughout the years

9. a stability in the number of students applying to the university was seen over the decade

10. the house price in london witnessed a slight increase in the year 2000/ grew gradually in the year 2000.

from ... to .../ between ... and...

1 The number of cars experienced a gradual decrease from 1990 to 2000.

2 The year 2005 saw/witnessed/ experienced a significant decrease in the research investment.

3 The sales of mangos saw a slight fall in 2006/ fell slightly in 2006.

adj + N -> a slight fall

4 There has been a sharp increase in the quality of food in supermarkets.

5 In 1998, sugar imports saw a quick drop of 3 million.

-> 1998 saw a quick drop of 3 mil in sugar imports.

6 The price of laptops dropped quickly over the period.

-> S + V + Adv + Number + Time period

A quick drop was witnessed/ seen in the price of laptops over the period.

7 The number of visitors to the website witnessed/ saw/ experienced an upward trend/ a downward trend

8 There were wild fluctuations in the growth rate throughout the years

9 A stability was seen in the number of students applying to the university over the decade

S1+V1, từ nối + S2 + V2

10 The house price in London gradually grew in the year 2000

VD: The girl who sits over there is my girlfriend-> The girl sitting over there is my girlfriend

The boy who is calling her is her boyfriend, right? -> The boy calling her is her boyfriend

The skirt that was ordered last weekend has been delivered to our address

-> The skirt ordered last weekend has been delivered to our address

The book that was written by her became a bestseller.

-> The book written by her became a bestseller

The students who study hard will pass the exam.

-> The students studying hard will pass the exam.

He was the student who answered the question correctly

-> He was the student answering the question correctly

2 The unemployment rate of American youth is 1.2 times that of Vietnamese youth.

3 The amount of water consumed per capita in rural areas is 1.67 times that of the city.

1. The percentage of English learners stood at 5,000, which is twice as high as the percentage of Chinese learners in 2015.

   The percentage of Chinese learners is a half of their English counterparts.

   -> English learners outnumbered Chinese learners by two to one

2. The unemployment rate of Vietnamese youth/ young people/ youngsters is 10% compared to 12% of American youth

3. The amount of water consumed in the city was lower than that in the countryside, at 750m and 1250m respectively.