Jack is funny. He often tells jokes to make us _____.

His father hoped         a doctor when he was a child .

—What is your hobby?—I ________ collecting stamps, but now I love reading.

—These Maths problems are too hard to ______. Can you help me? —There are many ways, but the most important is to try your best.

---Are you going to Shanghai?--- Yes, we          Shanghai next Sunday.