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Last Monday was Tree Planting Day.It was a fine day.We went to plant trees together.There were five people.Tian Yan brought young trees.Wu Fan used the spade to dig holes in the ground.Mike put the young trees into the holes.Liu Yu got water from the river.I watered the young trees.We were tired but happy.
( )（1）Tian Yan brought young trees.
( )（2）Mike dug holes in the ground.
( )（3）Liu Yu got water.
( )（4）I watered the young trees.
( )（5）We were happy.
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
