11.Where is his alarn clock
12.They are keys.
13.Those are our sisters.
14.What do you have?
15.Does Tim have a gold watch?
16.The old bike is under the tree.
17.The old bikes are not under the tree./ Are the old bikes under the tree?
18.Do you watch it very carefully?
19.Does Tim have a gold watch?
20.There is an old bike under the tree?