1 . St Petersburg,___________ is a very beautiful city, was once called Leningrad.

A．who

B．that

C．where

D．which

2 . The weather turned out to be very good, ________ was more than we expected. （用适当的词填空）

3 . Reading books, _____________ takes the reader to other worlds, is a wonderful way to enjoy life.

4 . You can find whatever you need at the shopping Centre, ___________is always busy at the weekend. （用适当的词填空）

5 . Beijing Expo 2019, ____ lasts for 162 days, is held in Yanqing from April to October.

6 . That evening,   ________ I will tell you more about later, I ended up working very late. (用适当的词填空)

7 . She and her family bicycle to work,___________helps them keep fit. （用适当的单词填空）

8 . 在下列句子中的空白处填入适当内容或括号内单词的正确形式。
1. Many leading companies across the world are making efforts to present high-tech products ______ (satisfy) people’s need.
2. If I hadn’t been sent off, we ______ (win) the match.
3. In our life, one of the most important things is to learn from our errors, forgive ______ (we) and move on.
4. Kids should keep in mind that their parents, in most cases, can relate to what they’re going through ______ they were teens once.
5. China’s high-speed train, Fuxing Hao, is now one of the fastest trains in the world, ______ can travel at a speed of 350 km/h.
6. It is reported that the project conducted by his research team ______ (complete) next month.
7. Because the flight was delayed, I ______ (wait) for two hours for my grandparents at the arrival hall yesterday.
8. When we visited our hometown, memories came ______ (flood) back.
9. ______ makes this novel stand out is its unique characters.
10. Music has a healing effect and it cheers you up when you are ______ a bad mood.

9 . Until now, we have raised 100,000 pounds for the poor children, ___________ is quite unexpected.

A．that

B．which

C．who

D．it

10 . They overcame some difficulties and completed the work ahead of time, ________ was something we had not expected.

A．that	B．which
C．it	D．what