You shouldn’t keep a pet _______________ you have enough time to care for it.
#56035
A
if
B
unless
C
though
D
when
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Some people won’t realize the importance of their health ______ they have lost it.
#58394
A
after
B
when
C
until
D
as
—We’ll visit the Summer Palace_____ there is a heavy rain tomorrow. — OK! Boating on the lake must be great fun.
#57358
A
if
B
as soon as
C
unless
D
since