我服了药，但不起作用。

_____ _______(take) _____ medicine, but _____ _____ ______(help).

I took some medicine, but it didn’t help.

你开车的时候看见了什么？

What ______ _____ _____(see) when _____ ______ _______(drive)? What did you see when you were driving?

那位老太太下巴士时摔倒了。

_____ ______ ______ ______(fall) down when _____ _____ (get) off _____ ______. The old woman fell down when she got off the bus.

他给过我他的地址，但我忘了。

______ ______(give) ____ _____ address, _____ _______(forget) it. He gave me his address, I forgot it.

他吃过晚餐后，就去散步。

After ______ ______ (eat) his _____, _____ ______(go) for a _______. After he ate his dinner, he went for a walk.

现在完成时练习：

1、      他们已经卖掉了他们的旧房子。

_____ ______ ______(sell) _____ _____ _______.

They have sold their old house.

2、      她已经有了一个宝宝了。

_____ _____ ____(have) ____ _______.

She has had a baby.

3、      你已经洗了你的头发了吗？

______ ______ ______(wash) _____ ______?

Have you washed your hair?

4、      你儿子已经做了他的作业了吗？

______ _____ ______ ______(do) _____ ________?

Has your son done his homework?

5、      我还没有找到他家。

______ _______ _______(find) _____ ______ yet.

I haven’t found his home yet.

过去时和现在完成时同时出现的练习：

1、      我已买了一辆自行车。我上周买的。

_______ _______ ______(buy) ____ ________.

_______ _______(buy) ______ ______ week.

I have bought a bike. I bought it las week.

1、我昨天遇到汤姆了，不过，我已好久没见到他了。

____ ______(meet) _______ ________, but ____ _______ _____(see) ______ for ____ _______ time.

I met Tom yesterday, but I haven’t seen him for a long time.

2、      我到达那里的时候，她还在等我。她说：“我已等你一个半小时了。”

______ ______ still ______(wait) ____ _____ when _____ ______ (arrive) there. ______ ______(say),’ _____ _____ ______(wait) _____ one ______ half ______.’