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He _______ _______ _______ in the morning.2．
He _______ _______ _______ in the morning and _______ bedtime.3．
He never _______ to bed _______ .4．
He _______ _______ his things _______ _______.5．
He usually _______ his homework _______ _______.6．
He _______ his room _______ and _______.7．
He often _______ his homework _______ at night.8．
He does not _______ to bed _______.9．
He sometimes _______ _______ in the morning.
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
