The child tiptoed(翘起脚尖走) quietly to the bird. ______ into the forest when he was about to catch it.
Mr. Smith never does any reading in the evening; __________.
The foreigners are _______ by the __________ progress that the Chinese have made.
You say he works hard, __________ and __________.
How long have you __________ the army?
He was filled with sadness as he watched her __________ the crowd.