One of the most important things ineducation is to let students ____ positive emotions and experience in theprocess of their learning.

He found very difficult the math problem．

Would you mind my sitting here—______! The man next to me has just gone. The seat is empty now.

“二句三年得，一吟双泪流”和“语不惊人死不休”是那“位诗人的自况 （ ）

Have you seen a tall boy ______ a basketball ______into the building