Yes, I did my homework last night.

What about Tom?

He hasn't done his homework yet.

Did Mrs. Jones go to the butcher's this morning?

Yes, she went to the butcher's this morning.

What about Mrs. Williams?

She hasn't gone to the butcher's yet.

Did you speak to him yesterday?

Yes, I spoke to him yesterday.

What about Susan?

She hasn't spoken to him yet.

Did George swim across the river an hour ago?

Yes, he swam across the river an hour ago.

What about Sam?

He hasn't swum across the river yet.

Did Tim take off his shoes a minute ago?

Yes, he took off his shoes a minute ago.

What about Frank?

He hasn't taken off his shoes yet.

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