Although they feel tired,__________they still go on working.
#56350
A
and
B
but
C
/
D
so
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Peter will cook for his parents __ the International Day' of Families comes.
#57632
A
unless
B
when
C
until
D
though
---- Hurry up ! The bus is coming . ----- Wait a minute. Don’t cross the street_________ the traffic lights are green.
#55728
A
since
B
after
C
while
D
until