III. Give the correct form of the verb:

1,--your mother (ever/eat) --. salad?

Yes. She (eat) -... it for dinner yesterday.

2, I (already/ do)-- my homework.

3, What -- your elder brother (do) -..right now?

4, Mr. and mrs. Brown ( not/have) =. a house in Viet Nam for a long time.

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