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（1）A. letter B. e-mail C. report
（2）A. leaf B. leaves C. listen
（3）A. Thanksgiving B. Halloween C .Tree-planting Day
（4）A. Cousin B. Aunt C. Uncle
（5）A. June 5th B. Jan. 1st C. July 10th
（6）A. play chess B. planting trees C. playing sports
（7）A. watch TV B. count insects C. watch insects
（8）A. My cat is eating fish in the kitchen.
B. My cat is watching the fish in the fishbowl.
C. My cat is sleeping in the bedroom.
（9）A. I often do my homework at 6:30 in the evening.
B. I don’t do my homework in the afternoon.
C. I often do my homework at 6:13 in the evening.
（10）A. I’m making a card for my mom because today is Mother’s Day.
B. Mom is making a cake for me because today is Children’s Day.
C. Mom is making a cake for me because today is my birthday.
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
