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I'm Sun Wei. I'm from China. I'm a boy. I can speak English. Last year, I went to Australia. I went there by plane. I saw many old buildings. I visited the Sydney Opera House（悉尼歌剧院）. It's more than forty years old. And I made a new friend in Sydney. Her name is Jelly. She can speak English and Chinese. Now we often write to each other. I am very happy, because I have a pen friend.
1．Sun Wei is from China. （______）2．Sun Wei can't speak English. （______）
3．The Sydney Opera House is twenty years old. （______）
4．Sun Wei's pen friend is Jack. （______）
5．Sun Wei is happy to have a pen friend. （______）
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
