It is fun to give friends something on their birthdays. Tim and Bob like to give each other funny things. On Bob’s birthday, Tim gives him shoes with peanuts(花生)in them. Bob says:
”I want to give Tim something funny, too.”When Tim’s birthday comes. Bob gives him a big box. Tim opens it. In the box there is a bank(储蓄罐)that looks like a duck. The duck has a hat on its head. Tim and Bob both laugh.
1.It’s fun to send presents on birthday. (
2.Tim and Bob are good friends. (
3.They like to give each other funny things as birthday presents. (
4.On Bob’s birthday, Tim gives him some peanuts. (
5.On Tim’s birthday ,Bob gives him a lovely duck. (

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

