1 . In the case of COVID-19, although the ___________(起源) of the virus points to the bat, any wild animals could be potential virus carriers.

2 . When I accidentally hit my thumb (拇指) with a hammer (锤子), it h_________ so much. Even though it’s been a week, there is still an a________ in my thumb. (根据首字母单词拼写)

3 . It may not be good for people to know everything they want because it may bring them into danger, as the saying goes: “C________ kills cats.” (根据首字母单词拼写)

4 . The a______ of the three numbers 7, 12 and 20 is 13, because the total of 7, 12 and 20 is 39, and 39 divided by 3 is 13. (根据首字母单词拼写)

5 . Her new d_________(the food that you eat and drink regularly) and exercise programme worked wonders for her. (根据首字母单词拼写)

6 . The ___________ (会议) centered on three main problems to getting and keeping girls in school: violence, poverty and poor-quality education. (根据汉语提示单词拼写)

7 . This little s______ (纪念品) brought back a flood of delightful memories every time I saw it. (根据中英文提示填空)

8 . __________(包容) is the quality of allowing other people to say and do what they like, even if you do not agree with or approve of it.   (根据汉语提示单词拼写)

9 . The d______ (离开，启程) of the train was delayed by an hour, causing inconvenience for the passengers waiting at the station. (根据中英文提示填空)

10 . In 2017, r______ (代表们) from Peking University, Tsinghua University, Nankai University and Yunnan Normal University gathered to commemorate the 80th anniversary of its founding. (根据中英文提示单词拼写)