—There are many trees in your garden. —Y
问题:
—There are many trees in your garden.
—Yes. They _____ by my father ten years ago.
A. plant
B. planted
C. will be planted
D. were planted
—There are many trees in your garden.
—Yes. They _____ by my father ten years ago.
A. plant
B. planted
C. will be planted
D. were planted