一.Fill in the biank.
1._____(什么）did Chinese people invent?
二.Read and correct the wrong one.
1.Did our Chinese people invented paper?_________
2.What are you wash now?_________
3.These books is very important._________
三.Read,think and write.
1.He invented the bicycle in (1389).（对打括号的部分提问）
______ ________ he invent the bicycle?