He made a fire ______ himself _____ warm.
| A．make, to keep | B．to make, to keep |
| C．to make, keep | D．make, keep |
Homo erectus pekinensis(北京人)________in Zhoukoudian Village，on the Longgu Mountain，Fangshan District，Beijing．
| A．has discovered |
| B．was discovered |
| C．is discovered |
| D．will discover |
Grandma________us stories when we were very young．
| A．used to tell |
| B．was used to tell |
| C．is used to tell |
| D．was used to telling |
—________free education，the poor children in my hometown can go back to school．
—So can the children in my hometown．
| A．Thanks to |
| B．Instead of |
| C．As for |
| D．Towards |
—Are you free now?
—No．I have so many chores________today．
| A．do |
| B．to do |
| C．doing |
| D．done |
—Most paper is made________wood．
—Yeah．But most books are made________paper．
| A．of；of |
| B．from；from |
| C．of；from |
| D．from；of |