+ I ___________(to walk) home yesterday.
- I ___________(to walk) home yesterday.
? ___________I ________(to walk) home yesterday.
+ Sara _________(to begin) to jump up from her chair when she saw him.
-Sara _________(to begin) to jump up from her chair when she saw him.
? ________Sara _________(to begin) to jump up from her chair when she saw him.
+ They __________(to play) tennis in 1990.
- They __________(to play) tennis in 1990.
?_________they __________(to play) tennis in 1990.