________ it is you’ve found, you must give it back to the person it belongs to．

A．That

B．Because

C．Whatever

D．However

Understanding the cultural habits of another nation, especially ________ containing as many different subcultures as the United States, is a complex task．

A．the one

B．one

C．that

D．such

Go for a picnic this weekend, OK?

________．I love getting close to nature．

A．I couldn’t agree more

B．I’m afraid not

C．I believe not

D．I don’ think so

Would you like me ________ the radio a bit?

No, it’s all fight．I’m used to ________ with the radio on．

A．to turn up; work

B．to mm down; work

C．turning up; working

D．to mm down; working

Man has just taken his first historic steps on his journey into ________．

A．space

B．the space

C．a space

D．any space

－I didn’t know that Caral was a waitress here．

－She ________ here on Saturday since June．

A．has been working

B．works

C．worked

D．has been worked

－Are you going home?

－Yes, please lock the door when you ________．

A．will have left

B．leave

C．will leave

D．have been leaving

－What does Roger Brown do for a living?

－He is one of the most successful ________ in the city．

A．newspaper reporter

B．newspaper’s reporters

C．newspaper’s reporter

D．newspaper reporters

Since he began work, he hasn’t ________ asked his father for money．

A．greatly

B．never

C．badly

D．ever

Jenny is always ________, never complaining about her poor health and other troubles．

A．careless

B．grateful

C．cheerful

D．comfortable