Computers must be of great use to ________ doing the scientific research.
| A．these | B．whoever |
| C．those | D．whomever |
---- Which city will be host city for the next Olympic Games?
---- London.
| A．a | B．/ | C．the | D．an |
Peter’s shoes looked just the same as Jack’s, but it cost _____ his.
| A．as much twice as | B．twice as much as |
| C．much as twice as | D．as twice much as |
The novels written by the author sell best, but five years ago no one could have imagined how great a role he________in the literary world.
| A．was playing | B．played | C．was to play | D．had played |
He turned down the request of his friend because it was________the limit of his power.
| A．beyond | B．over | C．off | D．above |
If you had worked hard, you ______ so anxious now．
| A．are not | B．would not have been |
| C．will not be | D．would not be |