___________ like the feeling chemical change in their brain creates. (rist takers / risk taking)
risk takers
___________ creates a chemical change in the brain. (risk taking / risk takers
risk taking
____________ students English is really fun. (teacher / teaching)
teaching
Our English _________ has lots of students in the class. (teaching / teacher)
teacher
__________ Twitter is one of the most popular activities on social media. (user / using)
using
___________ people is the reason Nile crocodiles are captured and moved. (attacking / attacker)
attacking
He is one of the billions of English _________ . (speaking / speakers)
speakers
The ranger's job requires him to be an animal _________ . (rescuer / rescuing)
rescuer
She is a famous __________ (climber / climbing)
climber
Jim goes _________ in the park every morning (runner / running)
running
People are the main ____________ of Nile corcodiles. (attacking / attackers)
attackers
An important part of the reanger's job is ____________ animals. (rescuer / rescuing)
rescuing
She loves __________ , (climber / climbing)
climbing
Ali has a very popular blog, he has 10,000 __________ . (following / followers)
followers
__________ Ali's blog is very popular these days (follower / following)
following
__________ English is his favourite part of learning the language. (speaking / speaker)
speaking
There are over 317 million Twitter _________ . (using / users)
users
Jim is a serious __________ , he runs every day. (running / runner)
runner