請(qǐng)選出下面加粗部分讀音不同的選項(xiàng)（　?。?/p>

• A、income

• B、centre 

• C、city

• D、bicycle

21.（）

 

• A、technical 

• B、business 

• C、political 

• D、research 

五、補(bǔ)全對(duì)話(共5句;每句滿分為3分,共15分。)根據(jù)中文提示, 將對(duì)話中缺少的內(nèi)容寫在線上。這些句子必須符合英語(yǔ)表達(dá)習(xí)慣。打句號(hào)的地方,用陳述句;打問號(hào)的地方,用疑問句。

提示：Mary與Bill不期而遇,邀請(qǐng)他一起吃晚飯。但Bill當(dāng)晚7點(diǎn)要去，下周一回來(lái)。Mary讓Bill回來(lái)后給她打電話。

M: Bill, is that you? I haven’t seen you for a long time.

B: Hi, Mary. Great to see you again. _____51_____?

M: Fine. Why don’t we get together and have a chat? How about _____52_____ this evening?

B: Well, it sounds great, but I’m _____53_____ at 7 o’clock.

M: What a pity!

B: Well, I’ll be back_____54_____We can find a time to meet again.

M: Okay. _____55_____ when you are back.

B: No problem. Goodbye!

M: Bye!