根据汉语意思用英语完成句子，将答案写在横线上。

1.别担心。他会准时到来。

Don’t worry. He will arrive here ________ ________.

2.我到家时，我妈妈正忙着做晚饭。

When I got home, my mother ________ ________ ________ dinner. 

3.Mr Smith让我们在小组内讨论这些问题。

Mr. Smith told us to ________ the questions ________ ________.

4.现在，学生们每天运动一个小时。

根据提示，写一篇80—100词左右的关于自己理想职业的短文。

我是一名中学生，从小就还怕医生，也不愿意当医生。自从汶川大地震后，我发现需要更多的医务工作者，而且我也出生在一个医生之家，……，所以，我决定长大以后当一名医生。

I am a middle school student. I used to                             

On the shelf there is _________ teddy bear．

A．the            B．a            C．an          D．（不填）

—Wow, your new bicycle looks the same as _______．

—Really?

 A．me         B．I         C．my         D．mine

Our school sports meeting will start _______ the morning of next Saturday．

A．on         B．at             C．in         D．to

—May I try on the jeans?

—Yes, you _______．

A．should        B．can          C．must        D．need

—Where’s your mother, Helen?

—She _______ the flowers in the garden．

A．waters        B．watered        C．is watering              D．has watered

—So far, how long _______ you _______ China?

—For one year．

A．have, come to         B．have, been to        C．have, been in             D．have, gone to

A talk on developments in science and technology         in the school hall next week．

A．given           B．will be given         C．has been given         D．gives

—Could you tell me _______?

—By underground．

A．how you came here                   B．how did you come here

C．when did you come here              D．when you came here