根据汉语意思，在空格内填入适当的词，使句子完整

我们在北京参观了天安门、故宫博物馆以及颐和园。

We visited Tian An Men, the Palace Museum ________ ________ ________ the Summer Palace in Beijing.

1.Do you know the player __________________________.（在百米赛跑中得第一名的）

2.Comrade Li _______________（我们选他当组长）works very hard.

3.Everything ________（我们在故宫博物馆里看到的）was rare and wonderful.

4.Math is one of the most difficult subjects _______________________.（我学习过的）

5.Please pass the news to Comrade Wang and Zhang ___________.（你今天将在茶话会上遇到的）

6.All those _____________（想去长城的）will get together at the bus stop at six tomorrow morning.

7.Do remember the time _______________.（我们明天一早出发的）

8.She told us the reason ____________.（为什么试验失败了）

9.The trees ________（学生们三年前种的）have grown very tall.

10.Wang Hong's　father wanted to meet　the worker ______________.（救他孩子出险的）

11.The building ______________（坐落在我们学校附近的）is a hospital.

12.Xiao Ming is really the bravest boy ___________________.（我所认识的）

13.The Summer Palace _______（外国朋友经常参观的）is the most beautiful park in Beijing.

14.I will never forget the day ___________..（我第一次上学的那一天）

15.There’s the bus _____________.（我通常搭乘上班的）

16.Tennis ________________________________（是夏季最好的运动之一）can be played おby two or four players.

17.Where is the man _______________________________?（他教你法语）

18.I don’t know the reason ________________________.（他为什么不同意我们的计划）

19.Have you received the letter _______________________.（我两星期前写的）

20.Where is the bookstore ___________.（你买到这本新词典的）