________ about wild plants that they decided to make a trip to Madagascar for further research.
#79716
A
So curious the couple were
B
So curious were the couple
C
How curious the couple were
D
The couple were such curious
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 ______, but he couldn’t understand the logical connection of the two subjects.
#82509
A
Having told many times
B
Having been told many times
C
He had been told many times
D
Many times as he was told
Not for a moment ______ sightseeing while in Europe.
#80762
A
he has stopped
B
he stops
C
did he stop
D
he did stop
If _____ carefully, the experiment will be successful.
#84616
A
do
B
does
C
done
D
doing