---- What did your son say in the letter?----- He told me that he _____ the Great Wall the next day.
If you have questions, you should ask the teacher _______ help.
Yesterday ___ 8-year-old boy fell into the river.____ boy was saved by ______policeman.
This pair of shoes ____________ $80.
Do you have ______________ to tell me?
Our teacher told us _______________ carefully in class.