_____ hard work it is! But _____ fun it is to finish walking the trail.
—What did your son say in the letter? —He told me that he __________ the Great Wall the next day.
—Would you please tell me __________? —OK, her name is Cici.
There is going to __________ an English party tomorrow evening.
The boy was able to __________ himself when he was very young.
Can you tell me what you __________ when the teacher came into the classroom?