Pine trees, of which there are almost one hundred ____, are found throughout the North Temperate Zone.
#6453
A
species
B
samples
C
specimens
D
Standards
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I haven't got a single ______from Aunt Mary since I last saw her.
#6939
A
advice
B
news
C
message
D
information
This dictionary has been ____ to us.
#6784
A
of great help
B
of very helpful
C
of quite helpful
D
very much helpful