Only when ________ possible to settle the problem.
| A．does the chief editor come will it be | B．the chief editor comes will it be |
| C．has the chief editor come will it be | D．the chief editor comes it will be |
Some sports are called spectator sports, as the number of spectators greatly _____ the number playing in the game.
| A．exceeds | B．boasts | C．strengthens | D．coins |
In _____ to the physical benefits, aerobic exercise has emotional benefits.
| A．principle | B．outcome | C．turn | D．addition |
As _____ matter of fact, basic gardening is so easy to achieve that even people with physical handicaps can garden.
| A．an | B．the | C．/ | D．a |
They travelled around _____ Changchun by _____ bus.
| A．the, / | B．/ , a | C．/, / | D．the, a |
John rushed out in a hurry, _____ the door _____ .
| A．leaving; unlocked | B．leaving; unlocking |
| C．left; unlocked | D．left; unlocking |