12._______is a healthy outdoor activity.
A: A. walking
B: B. Walking
C: C. To Walking
D: D. Walked
A: A. walking
B: B. Walking
C: C. To Walking
D: D. Walked
举一反三
- After walking for half an hour, he suddenly realized that he _____ in the wrong direction. A: was walking B: has been walking C: had been walking D: walked
- ____to school yesterday morning, I met a friend of mine. A: I was walking B: walked C: While I walking D: walking
- Walking is a healthy outdoor activity. A: Work makes me tired. B: Would you like to come? C: Shall we go for a walk now? D: Are you interested in the work?
- Mary_______in the garden when it began to rain. A: was walking B: walked C: walking D: had walk
- He stood up, excused himself, and ________out of the meeting. A: walking B: to walk C: while walking D: walked