2 . Thanks to great advances in fundamental research, a series of genetic therapies has arrived, or________(arrive), in clinics to treat blood cancer and other fatal diseases. （所给词的适当形式填空）

4 . —Can I help you, Madam?
—No, thanks, I ________.

A．have just looked around	B．just look ground
C．am just looking around	D．just looked around

9 . 请根据上下文内容, 将文中划线部分译成汉语或者英语。

There are many new ways of shopping, and online shopping is one of them. You can buy almost everything on the Internet, which is very easy. First, you choose something—clothes, tickets, a mobile phone, even a new computer—and pay for it.     1     Then you receive it a few days later by post.

Online shopping has several advantages. First, you can shop at any time as the shops are always open. However, physical stores have special opening hours.     2     其次, 实体店购物通常花费很多时间。You may get tired and be trapped in the crowded people and cars. But to shop on the Internet you only need a computer and a mouse!     3     You can also compare the prices of the same product and spend a lot or save money. But many people like going out and shopping with friends.     4     They don’t like shopping on the Internet because they can’t see the product or try the clothes on. Also paying over the Internet isn’t always safe.     5     网上购物正在改变我们的生活方式。One day no one will go to the shops anymore, because you’ll be able to buy anything on the Internet, and you will be able to receive it anywhere in the world at any time!

10 . — Is tea ready?
— No, mother is ________ it ready now.

A．doing

B．cooking

C．burning

D．getting