___________World Expo is regarded as the Olympic Games of the economy, science and technology, ___________expert said.
| A．A; an | B．The; an | C．The; a | D．A; the |
I request that you __________ the task on time.
| A．finished | B．should finish | C．could finish | D．would finish |
This is the first time wea film in the cinema together as a family.
| A．see | B．had seen | C．saw | D． have seen |
The education of _______young is always _______ hot and serious topic in modern society.
| A．/; the | B．a; the | C．the; a | D．the; / |
Accustomed to ______ the steep mountain, he had no difficulty reaching the top.
| A．climbing | B．climb | C．having climbed | D．have climbed |
The head office of the bank is in Beijing, but it has ___ all over the country.
| A．companies | B．branches | C．organizations | D．businesses |