11. Though I have often heard this song ______, I have never heard you ______ it.
-----This returned Chinese scholar has become one of the top experts in this field.-----Yes, I know him very well. He _____ in Africa with wild animals for eight years.
All made possible for China to succeed in carrying on its reforms and open-door policy.
The pencil which you wrote just now me.
The government tried its best to _____ the people’s needs, but the people were still not ______. In fact, what the government did was not______.
Raining hard ,____________?