Smile to the world, ________ the world will smile back to you.
#56394
A
nor
B
but
C
or
D
and
推荐题目
I thought the actor was famous, _________ none of my friends has ever heard of him.
#56363
A
and
B
or
C
so
D
but
—— Hurry up. The bus is coming! —— Oh, no, we mustn’t cross the street ______ the traffic lights are green.
#55778
A
after
B
since
C
when
D
until
----May I go swimming this afternoon? ----I'm afraid not _______ you have finished your homework.
#55714
A
unless
B
because
C
if
D
though
I hate travelling by air__________ you usually have to wait for hours before the plane takes off.
#56398
A
because
B
though
C
until
D
unless