Listen! The bird    in the tree.
#40584
A
sing
B
singing
C
is singing
D
is sing.
推荐题目
There _________ a meeting tomorrow afternoon.
#37526
A
will be
B
has
C
is going to have
D
will have
A fashion show _______next Saturday at our school hall.
#39829
A
hold
B
will hold
C
held
D
will be held
I must return the book to the library. I _____ it for one week.
#41947
A
keep
B
borrowed
C
have kept
D
have lent