1.In the last 20 years,this country has been t into an advanced industrial power.
答案:transformed
2.Mr Smith was chosen to (代表)the company at the conference.
答案:represent
3.The climbers had to u a lot of sufferings before reaching the top.
答案:undergo
4.His wife (确保) that he took all his pills every day.
答案:ensured
5.We can’t (付得起钱)to go on vacation this year.
答案:afford