Listen! The bird    in the tree.
#40584
A
sing
B
singing
C
is singing
D
is sing.
推荐题目
If the homework _______, you can go home.
#37038
A
did
B
has done
C
will be done
D
is done
 John, as well as his classmate, ______excited ______so many stars yesterday.
#41669
A
was, seeing
B
are, seeing
C
was, to see
D
were, to see
Her_______ eyes make her _______ really kind.
#42636
A
smiling; look
B
smiling; looks
C
smile; look
D
smile; looks