Past or present?

_____ you eat my toast today?

• Did

• Does

• Do

_____they in the park yesterday?

• Don't

• Do

• Were

____ she bring her friend?

• Did

• Do

• Don't

Where _____Maria ______last week?

• Do / go

• Does / went

• Did / go

When _____ Sarah get married?

• Do

• Did

• Were

Did Helen come to the party?

• Yes, I did.

• No, she didn't.

• No, she did.

I studied English last night.

_{* The negative form could be...}

• I not studied English last night.

• I didn't study English last night.

• I didn't studied English last night.

We went to New York 5 months ago.

_{* The negative form could be...}

• We didn't go to New York 5 months ago.

• We not went to New York 5 months ago.

• We didn't went to New York 5 months ago.

they were tired.

_{* The negative form could be...}

• They didn't be tired.

• They weren't tire.

• they weren't tired

DID is...

• a verb and an adverb

• an auxiliary and a verb

• just a verb