One of our rules is that every teacher wear school uniform while attending the school flag-rising ceremony.
The little boy is dirty from head to foot because he ___ in the mud all morning.
Her ________ look suggested that she was very _______ with the answer.
This book is well worth _______. Would you like to buy one?
I have bought two ball pens , _______ writes well.
------Why do you turn back?------ Oh, the bridge ahead_______.