--Mum, can I wear my jeans to school?--No, you ________ wear school uniforms. That’s the school rule.

I’m going to Europe on vacation together with John if I _______ find the money.

---Must I go to medical school and be doctor like you，Dad？--- No, you __________, son. You’re free to make your own decision. 

 —Must the government of Philippines (菲律宾政府) say sorry to China？—Yes, they __________. Their behaviour has deeply hurt Chinese people.

— I haven’t got the reference book yet, but I’ll have a test on the subject next month. — Don’t worry. You ________ have it by Friday.