1 . Our teachers spare no effort to create an atmosphere ___________ enables us to study attentively and harmoniously. (用适当的词填空)

2 . For some of us, the Spring Festival is the only occasion ___________ we have the time to be with our parents. （用适当的词填空）

3 . She was under extreme pressure ___________ moment she heard a familiar but horrible voice coming out of the room. （用适当的词填空）

4 . 同时，我们都会经历各种悲伤或痛苦的时期。（go)
At the same time, we all ______ ______ various periods ______ we feel sad or alone.

5 . The evidence ______ smoking can lead to many health problems, such as lung cancer and heart disease, is overwhelming.

A．how

B．what

C．if

D．that

7 . 当他专注于工作时，他总是废寝忘食。（absorb）（汉译英）
___________________________________________________________________________________________

8 . Cultural heritage is a lot more than just relics. For example, our country has many nationalities, ________________ dances, crafts and other traditions are also very important. (用适当的词填空)

9 . During my stay in America, I lived in university accommodation with other international students, ________________ allows me to meet people from diverse cultural backgrounds. (用适当的词填空)

10 . ________________ (既然) the war is over, they are hoping for a return to normality. (根据汉语提示完成句子)