now that引导什么从句时态

　　Now that the problem has been identified, appropriate action can be taken.

　　现在既已找出问题的症结，即可采取适当行动。

　　The heat is on now that the election is only a week away.

　　离选举只有一个星期了，因此大家开始感觉到有压力了。

　　Now that the kids have left home we've got a lot of extra space.

　　孩子们都离开家了，我们住着就更宽绰了。

　　How do you fill your day now that you've retired?

　　现在你已退休了，怎样打发你的日子？

　　Now that she's a flight attendant, foreign travel has lost its glamour for her.

　　她现在是空中乘务员了，去国外旅行对她已失去吸引力。