问题补充：
Only when be possible to sign the papers.
A. does the lawyer come with it
B. the lawyer comes will it
C. has the lawyer come it will
D. the lawyer comes it will
答案：
A. does the lawyer come with it
(答案→)B. the lawyer comes will it
C. has the lawyer come it will
D. the lawyer comes it will
解析：考察only的倒装句。Only倒装要有两个条件，only放在句首，且强调的是状语的时候，后面的主句要使用部分倒装的学生。本题中的when the lawyer comes是句中的时间状语从句，是不需要倒装的。需要倒装的是后面的主句it will be possible to sign the papers.句义：只有当律师进来的时候，才与可能签署那个协议。故B正确。
