Fill in the blank with a suitable answer.
It was a very (1)_______ afternoon.A dog (2)_______ a pond.It walked towards (3)_______ to have a drink.It went (4)_______ the edge,bent its head (5)_______ and was about to drink the (6)________ when it slipped and fell into the (7)______.
At first the dog did not mind.It was enjoying (8)_______.Then it became worried.How was it going to get (9)_______?It tried very hard to think of a (10) ________ to get out of the pond.