Going on a trip into space must be quite exciting experience.
| A．/;the | B．the; the | C．the; an | D．/; an |
He was disappointed ____ he had learned from books quite differed from his actual life.
| A．what | B．that | C．which | D．how |
Our community appears more beautiful with green grass and colorful flowers ____ here and there.
| A．grow | B．to grow | C．growing | D．having grown |
They chatted ____ coffee about their experience as volunteers during the charity.
| A．over | B．on | C．to | D．with |
A programmer may make mistakes in a wrong analysis of the situation _____ the programme was based.
| A．which | B．of which | C．on which | D．of what |
__________ the directions exactly, you will never get confused.
| A．Follow | B．To follow | C．Following | D．Followed by |