200
Are _____ allowed to join the army?
A decade lasts for ten years while a _______ lasts for one hundred.
We conduct experiments in the laboratory.
It is _________ to challenge ourselves in lessons.
It began as an ________ day...
A ____ carries blood to the heart.
_____ the ingredients carefully.
The _______ was loaded onto the ship.
Their new _________ was very kind.
____ say it's a wonderful place to visit.