The lights went out while the chief (a)   (write) a letter.

The two warriors (a)   (fight) with each other in the battle.

Ming Feng (a)   (look) at the cover of the book when Wen Kang spotted him.

The oxen (a)   (lie) on the ground, pretended to be dead.

One afternoon, while the mousedeer (a)   (search) for food along the river.

One day, while Xiu Xin (a)   (read) a stroybook in the public library, a naughty boy who sat behind her pulled her ponytail.

The Year 5 pupils (a)   (clean) our classroom just now.

Haikal and his family (a)   (watch) a movie a few minutes ago.

Many patients (a)   (wait) for their turns to see the dentist.