They often change the kind of crop in each field ____ few years, for example, growing corn or wheat and then the next year peas or soybeans.
#16182
A
every
B
a
C
each
D
some
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The employment rate has continued to rise in big cities thanks to the efforts of the local govenments to increase .
#15911
A
then
B
those
C
it
D
that
The children were catching butterflies in the garden. Some caught a lot, and others caught _______at all.
#16842
A
nothing
B
none
C
no one
D
neither