It is revolutionary new synthetic material that ________ (HARD) on contatc with water to form a solid membrane.
hardens
Coffee always seems to increase my __________(PRODUCE) and helps me make it through the day.
productivity
On the flip side of the coin, she was finding life ________(BEAR) without him.
unbearable
His ___________ (ABLE) to walk meant that he would need a wheelchair.
inability
She had been a willing __________(PARTICIPATE) in the contest.
participant
Before the ship leaves port, please ___________ (FAMILIAR) yourself with the details in the safety booklet.
familiarize
We find advertising on the radio very __________(EFFECT).
effective
The _________(FIND) are similar to those reported in previous studies.
findings
Professor Anderson __________ (SIMPLE) the research findings in last month's press release.
simplified
This is causing the researchers involved no end of __________ (ANXIOUS).
anxiety
She was easily ___________(RECOGNIZE), her dark hair streaming in the breeze of her partially open window.
recognizable
She had the ability to __________ (CAPTIVE) almost any audience with her humour and brilliant timing.
captivate
The specimens were __________ (CLASS) according to their country of origin and then sent to the museum.
classified
So Jay-Z set up his own label, the __________ (SANE) lucrative Roc-A-Fella Records, and the rest is history.
insanely
___________(EXPOSE) to the sun can accelerate the ageing process.
Exposure
This offer he refused from __________( WILLING) to quit his own country and his family connexions.
unwillingness