—Tom isn’t feeling very well.  —He seems to have a cold      the weather changes suddenly.
#55789
A
before
B
so
C
because
D
if
推荐题目
Bill can swim, _______ he can’t sing.
#57157
A
but
B
and
C
or
D
so
His hobby is ________ watching TV ________ playing the piano.It’s reading books.
#58415
A
either;or
B
both;and
C
neither;nor
D
not only;but also
The old man is _______ please keep quiet. 
#57362
A
sleep, and
B
asleep, so
C
sleepy, but
D
sleeping, but