(1)This is my friend, Daming. He’s ______(正在照相)
(2)What’s Amy doing ? She’s _______(正在和她的朋友交谈)
(3)What are you doing , Sam? I’m _______(正在听音乐)
(4)What’s Tom doing ? He’s ______(正在看书)
(5)What are they doing? They’re ______(正在划龙舟)
(6)Look at the men under the tree. They’re __(正在下象棋)
(7)They’re _______(正在喝)soybean milk!
(8)Amy is ________(正在跑步)
(9)Daming is ________(正在跳)
(10)What are you doing , Lingling? I’m ______(正在写一封信)
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