用所给词适当形式填空：
1. The men in _______ (制服) came up to them
2. When you come to the ________ (拐角), turn right.
3. He ran ________ (朝，向) the car that was moving.
4. Are you ________ (惊讶的) to see the animals?
5. My mother was ill yesterday and she felt very ________ (虚弱的).
6. Can you swim ________ (cross) the river.
7. The problem is very easy. They can work it out ________ (easy).
8. He went to school without ________ (have) breakfast.
9. They ________ (plan) to take another route when they saw the robbers.
10. We'll learn the ________ (twelve) lesson tomorrow.
