The companies are working together to create　　　　 they hope will be the best means of transport in the 21st century.

A. which　　　　　 B. that　　　　　 C. what　　　　 D. who

From mom’s love, patience and understanding, I have learned what a huge responsibility ___ is to raise a child.

A. that　　 　　　　 　　B. it　　 　　 　　C. this　 　　　 　　D. one

We found Marry’s brother to have _____ more story books than Ann’s.

　 A. much 　 B. too much

　 C. by far 　 D. far

You should put on the notices ______ all the people may see them.

A. where　　　　　　　　　　 B. in which

C. at　　　　　　　　　　　 D. for them

She didn't hear the door bell. She ________ to the radio.

A. was listening B. listened

C. had listened D. have listened

This is an illness that can result in total blindness ______ left untreated.

A. since　　　　 B. if　　 C. unless 　　　　 D. until

Do I have to go to your shop to pick the cake myself, ________ you will deliver it for free?

A. or　 　 B. and　　 　　 C. so 　　　 D. then

The leaders of the company are having a meeting to discuss where the new office branch________.

A．should situate　　　 B．should be situated

C．should be lied　　　 D．was located