They have abandoned city life and settled in the country, living on（ ）in the fields.
A、
what they grow
B、
that they grow
C、
how they grow
D、
which they grow
【正确答案】：A
【题目解析】：
从句从空格到句末，主句living on后面缺宾语，从句they grow后面缺少他们种的东西。主从句都缺宾语用what。选A。句意：他们已经放弃了城市生活，定居在乡下，靠他们在田里种的东西生活。
