閱讀下面短文，用括號內(nèi)所給動詞的適當(dāng)形式填空（必要時可加情態(tài)動詞或助動詞）。
Tom worked in the office of Mr Bates.
One day, when Tom got to the office, a letter【小題1】_________(wait) for him. He opened it.
“Dear Tom,” the letter said, “I【小題2】________(write) to thank you for your help. You【小題3】_________(help) me so much when I came to your office. Here’s a ticket for the big football match.”
Tom looked at the ticket. He could not believe that he had it. Everyone looked forward to【小題4】__________(watch) the match!
“ I must watch the match,” he though. “ I must. I【小題5】_______(expect) the big match for 4 year.”
Tom thought and though. He【小題6】________(not put) his heart into any work. Then at twelve o’clock he knew what 【小題7】__________(do).
He went out of the office and called his sister, Jean.
At one o’clock Mr Bates came up to him. “I have bad news for you, Tom. Your sister telephoned just now. Your mother【小題8】_______(send) to hospital a moment ago.”
“Thank you,” Tom said. “I will go to the hospital. I 【小題9】________(come) back as soon as possible.”
In fact, Tom 【小題10】_________(leave) the office quickly for the football ground. Tom’s ticket was a good one. He could stand near the front.
The next morning, when Tom got to the office, Mr Bates came up to him. “You’re fired(解雇), Tom.” Then he walked away angrily.
“But why?” Tom asked.
Then a girl said, “We saw the match on TV here yesterday! You were on TV! Tom, you had such a good ticket!”

----- Must I park my car behind the building?
------No, you ___________ . You ___________ park it here .

—Dad, must I do my homework now?

—No. You_____play games with your friends for a little while.

A. would 　　    B. needn’t        C. may             D. don’t have to

—Must I return the book this week?

— No, you ____. You can ____ it for 20 days.

A．mustn't: keep                          B．needn't; borrow

C．needn't; keep                          D．mustn't; borrow

—Must I take much medicine every day?

—No, you ________.