单选题 根据下面短文回答下列问题。
Mummy asks a little horse to carry a bag of wheat home.
On the way home, the little horse meets a small river. He is very worried. "What should I do?" he thinks. At this time, he meets a squirrel.
"Can I cross the river?" the little horse asks.
"Oh, you can't. The river is very deep. You will drown," the squirrel says.
The little horse is very afraid. He cries.
A cow comes to the little horse. "What's the matter with you, little horse?" The cow asks. "I can't cross this river. It's very deep," the little horse answers. "Oh, don't worry. This river isn't deep at all. I am sure you can cross the river easily. Try!" the cow says.
The little horse stops crying. He tries his best and crosses the river.
The moral: You never know what you can do until you try.

单选题 One day, the little horse's mummy asks him to ______.
A. carry a bag of wheat home
B. cross the river
C. go home

单选题 The squirrel thinks the little horse ______.
A. can cross the fiver
B. can't cross the river
C. will not be drowned

单选题 The cow thinks the little horse ______.
A. can cross the river easily
B. can't cross the river
C. will be drowned

单选题 At last, the little horse knows ______.
A. the river is very deep and he can't cross it
B. the river isn't very deep and he can cross it
C. he can't cross the river