A good American shoe-making company（公司）have a problem recently.Because of market changes，the s（1）

ales

ales

of shoes in the company go down.The boss is worried about this.He w（2）

ants

ants

to open new markets，so he asks t（3）

wo

wo

salesmen in his company to go to Africa to do a survey（調(diào)查）first.
   After the first salesman f（4）

inishes

inishes

his survey of the African market，he calls the boss and t（5）

ells

ells

him that the African market for shoe sales is null（無(wú)效）.He s（6）

ounds

ounds

quite unhappy，"Boss，it's bad news.The weather here is so hot.People all go barefoot.No one wears any shoes.There is no m（7）

arket

arket

for us here!We are not going to be able to sell a single pair of shoes in Africa!"
   The second salesman also calls the boss.He is quite h（8）

appy

appy

and says，"Boss，good news.There is a great business opportunity（機(jī)會(huì)）for us.No one h（9）

ere

ere

wears shoes.No one sell shoes.We are going to sell thousands of pairs of shoes and make m（10）

uch

uch

money.And now all are need to do is to let them know the importance of wearing shoes on the hot road."