【2020最新整理国开(电大)人文英语1-3896网上形考机考题库】The police saw him _________ on the ground when they arrived.

【2020最新整理国开(电大)人文英语1-3896网上形考机考题库】The police saw him _________ on the ground when they arrived.
选择一项：
A. to lie
B. lay
C. lying