a wedding, a holiday, a sports competition, a graduation.. these are all important ______
events
The _____ of Beijing is over 21 million people.
generation
communication
population
The border between land and sea. This ______ is very beautiful.
ocean
coast
mountain
cost
This restaurant is always busy because it is the most ____ one in my city.
popular
population
district
community
I live in the Westbrook _________ of the city.
distinct
popular
city
district
We can see 3 _________ from the same family. Young, middle, and old.
generations
things
generals
There is a large Chinese ________ in New York City.
communication
people
community
Many birds _____ from one place to another during the year.
migrate
play
mitigate
Each snowflake is ________. No 2 snowflakes are alike
the same
unique
pretty
The water ____ is very important. Rain falls down, the water goes into the rivers and oceans, then the water evaporates and goes back up to the air and clouds, and the ___ starts again.
cycle
Photosynthesis is a _________ in which plants turn sunshine into energy.
process
There are many _______ of beetles.
species
Scientists must ______ a lot of data when they do research. Some people ______ toy stamps for a hobby.
collect
Scientists must collect a lot of ______ when they do research.
data
