While building a tunnel through the mountain, __________. 

A. an underground lake was discovered

B. there was an underground lake discovered

C. a lake was discovered underground

D. the workers discovered an underground lake

 Because the shop __________，all the T­shirts are sold at half price.

A. has closed down                                        B. closed down 

C. is closing down                                         D. had closed down

—Have a picnic this weekend?

—__________. I’d like to go out for a rest.

A. I couldn’t agree more B. I’m afraid not

C. I believe not　　　　　　　 　　　　　　　　　　 D. I don’t think so

 This kind of plant grow best __________ is plenty of rain.

   A. there                    B. where                    C. in which                D. where there

 — I usually go there by train.

— Why not __________ by boat for a change?

A. try going                    B. to try to go        C. try to go                   D. to try going

 He told me how he had given me shelter and protection, without which I __________ of hunger and cold.

A. would be dead            B. would have died    C. would die          D. will have died

 At the party all the old people danced __________ the music which reminded them __________ their college life 40 years ago in Chengdu.

A. of; to                     B. to; of                    C. to; to           D. of; of

 Nowadays more and more young students would like to play video games. As a result, they don’t have any time to __________ feelings and ideas with their parents or teachers.

A. spare                     B. tell                       C. have            D. share

 It was in New Zealand __________ Elizabeth first met Mr. Smith.

   A. that                    B. how                  C. which        D. when

 — What is __________ population of your home town?

— I think it has __________ population of at least 2,000,000

A. a; the                         B. the; a              C. the; /                 D. /; the