【题目】Rewrite the following sentences.按要求改写句子。

1. Sheep like to eat grass.   (划线部分提问)

What ________ sheep ________ to eat?

2. His friend’s name’s Jimmy.   (划线部分提问)

________ his ________ name?

3. Peter，draw on the blackboard.   (改为否定句)

Peter, ________ ________ on the blackboard.

4. There are some old sheep on the farm.   (改为单数句)

There ________ ________ old sheep on the farm.