---Bear in mind that you won't be able to cancel the contract ____you've signed. --- I _____.
#80350
A
unless; do
B
since; will
C
once; will
D
after; have
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He always brings me a pretty gift ____ he comes to visit me.
#33925
A
by the time
B
sometimes
C
every time
D
at times
We’ll have a picnic in the park this Sunday _________ it rains or it’s very cold.
#79994
A
since
B
if
C
unless
D
until