They began to fear they’d swum too close to some baby dolphins by accident / confusion / error / fault.
accident
15
To his relief, they managed / succeeded / achieved / resulted in doing so.
succeeded
15
A high school student in Canada became front-page news / article / press / report when she made herself a dress out of her maths homework.
news
15
Individual dolphins in the group the scientists studied each have their own name, containing / including / consisting / involving of a series of whistles.
consisting
15
When a group of dolphins goes / puts / gets / comes across another group at sea,...
across
15
Scientists have long been trying to discover the process that makes this rebirth available / probable / capable / possible and now they have discovered how it is done.
possible
15
The frogs produce a chemical in their body that resembles the antifreeze that people use to prevent / halt / avoid / block their cars from freezing.
prevent
15
In this way he manages to adjust / combine / join / merge his love of sport with some useful work.
combine
15
Water is essential for our health. In ............................ of this, many of us still don’t drink enough, so bottled water is a good way of ............................ sure we drink clean water.
addition / making
25
The new car is known as ‘energy positive’, ............................ means that actually produces more energy than it consumes. Further models of the solar-powered car are still ............................ tested.
which / being
25
Dinosaurs have been extinct for 65 million years ............................ the very least.
at
15
All that you need to do is take a walk through a large wood, known ............................ Wigdale Old Forest.
as
15
Large groups of people have been meeting on the same day to take part ............................ a massive pillow fight.
in
15
The website was set ............................ to help with the conservation of tigers.
up
15
I finally flew solo on my 16th birthday, which was the ............................ (EARLY) I could do it.
earliest
15
The ............................ (ARRIVE) of thousands of birds at their winter homes is ....