21.Is this your ______ visit to America?(two) 22.Jack enjoys

21.Is this your ______ visit to America?(two) 22.Jack enjoys _______ to popular music.(listen)
23.The bad news made her _______.(sadness)
24.The weather in the South Pole is so _______ .(change)
25.________ speaking,English people don’t shake hands when they just meet or say goodbye.(general)
26.“If I work a bit longer,I can ______ your leg,” said Dr Bethune.(safe)
27.The People’s Square is in the ______ of Shanghai .(central)
28.Chinese food is wonderful though it’s quite _______ from American food.(difference)
29.I hope I can take a round-the–world ________.(fly)
30.He understood what I meant ________.(final)
31.The food is good in this hotel,but the _______ is poor.(serve)
32.Our school is being _______.(painter)
33.This building was rebuilt again and again over the ________ years.(follow)
34.The young doctor was a bit _________.(nerve)
35.He is one of the ________ workers in the factory.(friend)
36.He told the story to the __________.(village)
37.On their way,they met a group of _______ soldiers.(wound)
38.The sick man was told to take the _______ three times a day.(medical)
39． Teachers’ _______ is to make children learn and be useful to the country.(busy)
40.He always says he is a lucky _______.(fish)

twice listening sadnessly chance generally safely central different flying finally servely painterly following nerves friendly villages woundful medically bisiness fish