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The children are at Ben’s birthday party. There is a big birthday cake on the table. On the cake there are twelve candles. Look! Daming is playing the piano and Simon is playing the guitar. Now the doorbell is ringing. Kate opens the door.
They are Ben's friends. They bring lots of presents. Tom gives Ben a new pen. Nancy gives him a CD. Maomao gives him a card. Now they are singing the song Happy Birthday to You to Ben. Ben is very happy.
1．The children are having a picnic. （____）2．There is a big birthday cake on the table. （____）
3．Ben is twelve years old today. （____）
4．Daming is playing the guitar and Simon is playing the piano. （____）
5．They are singing the song Happy 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
