. We’ve decidwed to clean up the lake ……… it is full of rubbish.

          A. so

B.although

 C.but

D. because

2. Let’s go to the movie, …………….?

          A.do we                       B. don’t we                 C. shall we              D. shan’t we

3. It’s very …. in the city. Some rick people live in large villas, while many poor people live in small slums.

A. spacious              B. healthy                   C. diverse               D. equal

4. We believe that urban trasport pods can travle ……. around 30kph

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

5. Playing chess after dinner sounds...................... to me.