never-ending complaining dominates drop out of injuries add up to competitors practical belong to for the first time

（1）On a family holiday last summer，my sister spent all her time

complaining

complaining

that she needed to charge her phone.
（2）Despite many

injuries

injuries

in his career，he always remained determined and focused.
（3）But when I was 15 and went into Mr Jenkins' class，I really became interested in a subject

for the first time

for the first time

.
（4）He used to explain things which seemed difficult with lots of

practical

practical

examples and in simple language.
（5）The only thing I can remember from school maths is that the angles of a triangle

add up to

add up to

180 degrees!
（6）Social network

dominates

dominates

my life in so many ways.
（7）

Competitors

Competitors

should be judged on their pronunciation，clarity and fluency，and also progression of ideas and audience engagement.
（8）I have a

never-ending

never-ending

flow to messages and updates from all the people I associate with online.
（9）We all want to be part of a group and feel like we

belong to

belong to

our community.
（10）Jason Harley decided to

drop out of

drop out of

this kind of lifestyle，and he discovered that having only a little money made him free.