Mike had just finished his lunch and was about to take a break _____ an unexpected visitor came.
#33274
A
when
B
while
C
so
D
for
推荐题目
It is known to all that ____ you exercise regularly, you won’t stay healthy.
#31547
A
because
B
unless
C
now that
D
in case
During the 1950s，R&.B changed modern music further and led to＿＿＿＿we know as rockand roll.
#31094
A
as
B
what
C
that
D
which
__ You keep on coughing．What’s the matter? __ Oh, I’ve got a cold．Nothing serious, ______?
#33622
A
yet
B
though
C
indeed
D
anyway