When you set foot on a new country you have to learn to a whole new way of life which

问题补充：

When you set foot on a new country, you have to learn to a whole new way of life, which canmost of your time in the beginning.

A. get used to; make up

B. be used to; take up

C. used to; waste

D. used to; occupy

答案：

A. get used to; make up

(答案→)B. be used to; take up

C. used to; waste

D. used to; occupy

解析： get/ be used to (doing) sth 习惯于；对……适应；take up 占用（时间、空间等）。used to do sth 过去常常做某事；occupy也可以用于“占用时间或空间”。综合起来答案为为B。