Gutter oil is illegally recycled cooking oil, ________ contains chemicals that are harmful to the human body and can even cause cancer．

it

which

where

that

I finally got the job I dreamed about．Never in all my life ________ so happy．

did I feel

I felt

I had felt

had I felt

Jeanswest Clothing donated 1 million yuan to a university in Guangzhou．________, the new student activity center building was to be branded with the company's name．

In turn

In reward

In return

As an award

Having done well in the competition，Tom returned to his school ________．

to be a proud winner

being a proud winner

as a proud winner

a proud winner

China ________ a sharp increase in the number of Social Networking Services users in the past years．

has seen

saw

has been seen

was seen

One of Jobs' unique contributions to Apple is his ability to ________ when the public may finally be ready to adopt such a technology．

create

admit

recognize

adjust

________a healthier lifestyle is being promoted, the bicycle has also become a tool that keeps people on the go．

For

When

As

Despite

Want to speak more fluently?Just come to our club to have more ________．

chance

experience

success

practice

During a Fair in Nanjing this May, UCC bicycles, which are made in Taiwan, were sold out even though ________ 50, 000 yuan each．

cost

costing

being cost

having cost

By serving others, a person focuses on someone other than himself or herself, ________ can be very eye-opening and rewarding．

who

which

what

that