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（1）Listen, the birds ___________ (sing) in the tree.
（2）It’s 2:00 in the afternoon. The children __________(make) a kite.
（3）You’re _______ (watch) a match in your school now.
（4）Mary is ________ (write) am e-mail to her friend.
（5）We are now _______ (live) in the town.
（6）What ______ the students _______ (do) now?
They ___________ (play) football in the football field.
（7）He ____ (not read) in the classroom now. He _______ (do) his homework.
（8）–Are the boys storybooks? (read) -Yes, they_______.
（9）- (be) Miss Li in the teachers’ office now? –No. She (take) photos.
（10）Look , my father _________ basketball with his friends. He is a good basketball . (play)
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
