日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

Living in the central Australian desert has its problems, _____ getting water is not the least.

  A. for which       B. to which

  C. of which        D. in which

Living in the central Australian desert has its problems, _____getting water is not the least.

 Living in the central Australian desert has its problems, _____getting water is not the least.

Living in the central Australian desert has its problems, _____getting water is not the least.

A. as   B. of which    C. whose   D. for what

Living in the central Australian desert has its problems, _____getting water is not the least.

A. as   B. of which    C. whose   D. for what