Canada has vast areas of wilderness, from the Arctic north, _______ average winter temperatures are usually -20 0C, to the border with the USA in the south, _______ is said to be the longest border in the world not defended.
#70232
A
which, where
B
whose, which
C
where, where
D
where, which
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He fell off the bike ________.
#41254
A
while he rode
B
while he was riding
C
while he is riding
D
while on bike
I made a promise to myself______ this year, my first year in high school, would be different.
#68383
A
whether
B
what
C
that
D
how