Last week local shrimpers held a news conference to take some credit for the resurgence of the rare Kemp's ridley turtle, saying that their compliance with laws requiring that turtle-excluder devices be on shrimp nets protect adult sea turtles.
Last week local shrimpers held a news conference to take some credit for the resurgence of the rare Kemp's ridley turtle, saying that their compliance with laws ***************protect adult sea turtles. A. requiring that turtle-excluder devices be on shrimp nets protect B. requiring turtle-excluder devices on shrimp nets is protecting C. that require turtle-excluder devices on shrimp nets protect D. to require turtle-excluder devices on shrimp nets are protecting E. to require turtle-excluder devices on shrimp nets is protecting 答案是B 为什么前面是last week,后面还能用is protecting 这不是时态的矛盾吗?