1 . There was a __________(迷惑的) look on his face when he met with a difficult problem. (根据汉语提示单词拼写)

2 . Mandela is the first South African leader to pay an __________(正式的) visit to the Mainland. (根据汉语提示单词拼写)

3 . It can provide students with instant feedback (反馈), including reports about their __________(优点) and weaknesses. (根据汉语提示单词拼写)

4 . What __________(使恼怒)me most was that you sent me a pair of shoes of wrong size. (根据汉语提示单词拼写)

5 . Tony unlocked the back door and __________(使滑行；滑动) out of the room. (根据汉语提示单词拼写)

6 . I hope that many foreigners who don’t speak Chinese __________(流利地) can still embrace and enjoy life in China. (根据汉语提示单词拼写)

7 . A big earthquake __________(袭击) the city last year, killing dozens of people. (根据汉语提示单词拼写)

8 . If you are interested, please sign up at the students union before next Sunday so that we will make necessary __________(安排). (根据汉语提示单词拼写)

9 . We need to learn from it and avoid going further down the path of mistake and __________(失败). (根据汉语提示单词拼写)

10 . Why don’t you __________ (联络；联系) your parents online more frequently? (根据汉语提示单词拼写)