Question

As he _____ in the river for five hours, the thief looked very pale and hopeless.

A. trapped
B. has been trapped
C. trapping
D. had been trapped

Answer 1

答案D

试题分析：考查时态。句意：当那个贼在河里待了五个小时，他看上去脸色苍白似乎绝望了。根据句意说明D正确。
考点：考查时态
点评：本题的关键是在后半句的过去时和句意。那个小偷在河里待了5个小时是在脸色苍白之前。故使用过去完成时。