Did you know that crows are really intelligent birds, maybe ___________ as intelligent as young children?
a) far b) alike c) even d) again
c)even
He was inspired by his parents, _______ first introduced him to snowboarding.
WHO
NATURE
In Oregon in the US there's a _________ wonder called Lost lake.
NATURAL
Unfortunately, I don't know much about the story of my country.
UNFAMILIAR
Unfortunately, ________________ the story of my country.
I AM UNFAMILIAR WITH
In another experiment, six crows had to carry ________ various tasks.
a) on b) through c) off d) out
d) out
He hopes _____ compete in the next Winter Olympics.
TO
ACT
Liquid rock came out of the volcano when there was volcanic ____________.
ACTIVITY
They didn't expect many people would come to the party.
EXPECTED
Few people _________ up to the party.
WERE EXPECTED TO SHOW
A crow worked out how to use tools to __________ a puzzle.
a) conclude b) decide c) complete d) secure
c) complete
There are professionals who may never achieve _______ he has.
WHAT
SURROUND
Snow from the __________ mountains melt.
SURROUNDING
Sorry I completely forgot the time so I missed the bus.
REALISE
Sorry, I _________ the time was so I missed the bus.
DID NOT REALISE WHAT
Scientists have _________ at this conclusion.
a) approached b) come c) got d) arrived
d) arrived
He was introduced to this sport _______ a very young age.
AT
ABLE
Because the lava tunnel measures only two meters in diameter, the water is _________ to escape quickly.
UNABLE
'You really shouldn't have upset your sister!' Dad said to me.
OFF
Dad told ________ upsetting my sister.
ME OFF FOR
They concluded this by following some experiments _________ in the UK.
a) adopted b) conducted c) operated d) established
b) conducted
__________ then, his snowboarding has gone from strength to strength.
SINCE
MYSTERY / EXPLAIN
This may seem ________ but there's a logical ___________.
MYSTERIOUS / EXPLANATION
It's a pity Sarah didn't tell us which bus to take to her house.
SHOULD
Sarah ________ us which bus to take to her house.
SHOULD HAVE TOLD