You should always wear a ____________ when riding a bicycle to protect your head.
helmet
The ancient Roman ___________ built incredible roads and buildings thousands of years ago.
civilization
My grandmother gave me some excellent ________ about how to save money for the future.
advice
If you eat a healthy ________ with plenty of vegetables, you will have more energy.
diet
Archeologists found a 2,000-year-old ___________ buried deep in the mud.
artifact
Wash the dishes is my least favorite __________ to do after dinner.
chore
This computer software is very ___________; it can do complex tasks in seconds.
advanced
Long ago, countries would _________ silk and spices instead of using coins.
trade
The museum has a complete ____________ of a Tyrannosaurus Rex on display.
skeleton
The construction workers are busy working at the building ________ downtown.
site
We ______________ (see) that new action movie twice this month.
have seen
Mr. Green _____________ (be) a high school principal since 2018.
has been
We ___________________ (not / meet) our cousins since last Christmas.
haven't met
He ___________ (teach) English grammar to elementary students since he graduated.
has taught
My brother ________________ (work) at the factory for three years.
has worked
___________________ a big storm last night, and many trees fell down.
There is
There was
There are
There were
