1. 根据句意及汉语提示，用适当的词组完成句子。注意时态的变化。

1. （1）  （起初）, all of us had to wait at the school gate.

3. （2） The king was worried that someone would  （取代他的位置）.

5. （3） The child  (想要) eating ice cream. But his mother doesn't allow him to eat it.

7. （4） Just now Sam  (查明了) when the next train would leave.

9. （5） One night, Mr. Brown was ill, so his son  (叫来) a doctor to examine him.