Everyone has periods in their lives ______ everything seems very hard.
#78208
A
when
B
where
C
which
D
that
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Julie was good at German, French and Russian, all of _____ she spoke fluently.
#77851
A
who
B
whom
C
which
D
that
There is a new problem involved in the popularity of private cars __________ road conditions require __________.
#78215
A
that ... improving
B
which...to be improved
C
where ...improving
D
when...improving
Mass deaths of birds were not unheard of, but they normally happened unnoticed at sea or in rural areas away from towns. Many birds are weak and die in winter _______ food is scarce.
#76616
A
which
B
what
C
when
D
how
Bears often hide themselves in places __________ can’t be found by hunters.
#77535
A
in which
B
where
C
that
D
不填