Supply the correct tense or form of the verb in the brackets: This tree (plant) ... by my grandfather a week ago

C. supply the correct tense or form of the verb in the brackets
1. this tree ( plant ) ................ by my grandfather a week ago
2. what ........... you ( do ) ........... at 8 last night? I ( watch ) ............. a good film
3. Nam is very happy ( help ) ........ his grandfather with ( plant ) ........ roses in the garden
4. I just ( read ) ........ a poem ( compose ) ....... by To Huu