This is the third time that Tom has failed his history.He nearly wants to________it.

A．fall                                                     B．drop 

C．break                                                 D．pass

—Which ball is yours?

—The biggest one________belongs to our class.

A．that is on the table                               B．that in the box

C．lies on the floor                                   D．which is on the table

When I asked her for help，she agreed to help me________without any hesitation (犹豫)．

A．immediate                                           B．immediately 

C．for once                                             D．on once

Between the two________，it is often not their age，but their education that causes misunderstanding.

A．peoples                                              B．families 

C．generations                                         D．countries

—Will you________their wedding?

—No，even if invited to.

A．join                                                    B．join in 

C．take part in                                         D．attend

I regret________you that we are unable to help you.

—It doesn’t matter.Thank you all the same.

A．to tell                                                 B．telling 

C．at telling                                             B．for telling

That was the first lesson________he taught me in my life.

A．which                                                B．this 

C．what                                                  D．that

—I have________all of the goals I set for myself in high school.

—Congratulations.

A．acquired　　                                       B．finished　　

C．concluded　　                                     D．achieved

请根据下面的内容提示，用英语写一篇物理实验报告。

实验目的：证明冰融化过程中温度不变

实验用品：冰块，大小烧杯，温度计，热水

实验步骤：1.在一个大烧杯中倒入热水；

2．把装有冰块的小烧杯置入热水中，在冰块中插入温度计；

3．观察冰块温度变化，注意冰融化开始时的温度；

4．观察冰融化为水过程中的温度变化。

实验结果：冰全部融化为水融化过程中温度不变。

实验结论：冰在零摄氏度时才开始融化，融化过程中温度不变。

注意：1.词数：100左右；

2．可适当增加细节，以使行文连贯；

3．参考词汇：烧杯beaker；温度计thermometer；观察observe。

Today I’d like to tell you anything about riding a bike in Wuhan.If you visit Wuhan，you’ll see many buses，cars and also bikes.It’s very cheap to use bike.If you take a bus，you often have to wait for half an hour or so.What’s more，the buses move very slow and are quite crowded.I was used to go to the stadium by bus.I often arrived there late，feeling tiring.Then a friend suggested I went to the training classes by bike.I accepted his advice.Take a bus takes 30 minutes，while riding a bike takes 15 minutes.It is not out of date at all.Instead，I love riding to attend the classes but in this way I feel more better.