Question

—Who do you think ________the book here?—It may be John.He was sitting here all the morning. .

—Who do you think ________the book here?—It may be John.He was sitting here all the morning. A．was leaving B．leaves C．had left D．has left

Answer 1

D

句意为：——你认为是谁把书落在这里了？——可能是约翰。他一上午都坐在这里。强调过去发生的动作对现在造成的影响或结果，应该用现在完成时。