___ the beginning of the meeting, the president made a speech ___ how to reduce pollution.
------What is your little brother like ? ---- ______.
Jack was born______ 18 th, November, 2001. A in B. on C. to D. at.
—When did you see him? —______.
We go _____ the road and _____ the building, then get to the park.
---Do you know Mark Twain? ---Yes .2hHe is a great writer of America. And he ____the name Mark Twain and became famous in the _______a e1教育名师原创作品