问题补充:
If people cutting down the forest, they will have nowhere .
A. keep, to live in
B. will keep, to live in
C. keep, to live
D. will keep, to live
答案:
A. keep, to live in
B. will keep, to live in
(答案→)C. keep, to live
D. will keep, to live
解析:句意:如果人们继续砍伐森林,他们将没有生活的地方了。不定式作宾语补足语表示具体的将要进行的动作,当主句描述将来动作时,英语条件从句中用一般现在时态表示将来动作,结合语境可知选C。