Fill in the blanks using the correct tense (of the verb):
By the time he reached her, he ________ for almost an hour and ________ tired. However, when he ________ her smile, he ________ immediately energized and ________ if she wanted to continue walking together.
1
"has been walking; feels; sees; is; asks"
2
"had been walking; felt; saw; was; asked"
3
"is walking; felt; has seen; is; asks"
4
"walks; is feeling; sees; was; is asking"