问题
选择题
— Why do you think ______?
— He could ______ for exercise.
A.is the man running, run
B.the man is running, be running
C.does the man run, run
D.the man runs, be running
答案
B
题目分析: 句意:为什么你认为那个人在跑步?他可能是在跑步锻炼。 do you think接宾语从句,语序为陈述句语序;对正在发生的事情做出猜测,用进行时态,故答案选B.