【题目】﹣﹣It's a top secret．

【题目】Small cars are useful in cities with narrow __________.

【题目】I like this kind of music that I can dance ______.

【题目】Let’s save pandas! There only about 2, 000 pandas living in the forests now .

【题目】— ________. Is this your book?

【题目】— All of my classmates have passed the PE test.

【题目】It’s 7 o’clock. The kids are still sleeping. ________!

【题目】If you can answer my question, please ________ your hands.

【题目】Although we have learned English for 3 years, we still have trouble _____ the new words.

【题目】The students are clever. They have no problems _____ out the math problem.