----What were you doing _________ 8 last night? ----- While I was wandering in the street, I noticed a wallet __________ on the ground.
David scored a wonderful goal _____the football match and the team won the match ______.
—Shall we go to the Great Wall on National Day? —It’s a great idea ,__________we don’t have enough money.
The chair is made_____wood and the paper is made _____wood,too
Why not___ your teacher for help when you can’t finish ___ it by yourself?
When I walk_____ the classroom, all the students are listening carefully.