had是什麼時態怎麼用

例句

1、The submarine had had time to submerge before the warship could approach.

潛水艇沒等軍艦靠近就及時潛入水下了。

2、She had had a rootless childhood moving from town to town.

她小時候居無定所，在各地流浪。

3、It transpired that the gang had had a contact inside the bank.

據報這夥歹徒在銀行裏有內應。

4、She had had the foresight to prepare herself financially in case of an accident.

她有先見之明，經濟上作了準備以防萬一發生事故。

5、They had had their pet dog stuffed.

他們請人把他們的寵物狗製成了標本。