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Miss Li: What can I do? These books are so heavy. I can't carry them.
Miss Wang: You can ask some students to help you.
Miss Li: Good idea. Thank you.（Miss Li goes to the classroom.）
Miss Li: Good morning, boys and girls. There are some books in the office. I need to carry them here. But they are heavy. I can't carry them all. Who can help me?
Students: We can help you.
Miss Li: Thank you. But I need two boys. Li Lei and Daming, please come with me.
Li Lei and Daming: Yes, Miss Li.（Li Lei and Daming help the teacher to carry the books.）
Miss Li: OK. Thank you very much.
Li Lei and Daming: Not at all.
1．Miss Wang wants to carry some books to the classroom. （
2．Miss Li can't carry the books by herself. （
3．All the students think they can help the teacher. （
4．All the students help the teacher to carry the books. （
5．Li Lei and Daming help the teacher. （
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
