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1. The boy behind me is _________ (write ) a letter.
2. Would you like _________ (listen ) to some music ?
3. Look , he can ________ (fly ) a kite on the grass.
4. _________ your cousin always like _______ (ask ) a lot about Maths?
5. My brother often ________ (play ) football at the weekend.
6. The students are very ______ (excite ).
7. I _______ (finish) primary school next year.
8. Her aunt ________ (give) a red packet to her yesterday.
9. Rubbish _________(make ) the water dirty .
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
