---________ can you finish this English examination?
---In about one and a half hours.
A:How far
B:How often
C:How soon
D:How long
找错误并改错:
I ride my bike in Sundays.
____
——Jenny, ________do you visit your grandparents?——Twice a month.
石块放入前水的体积是____ cm3,那么石块的体积是____cm3.
环境问题的危害:威胁生态平衡,危害人类健康,制约我国经济和社会的____。