-Alvin, are you coming with us?
-I'd love to, but something unexpected __________.
| A．has come up | B．was coming up |
| C．had come up | D．would come up |
People complain that decisions to approve or deny a permit are often ______ rather than based on fixed criteria.
| A．appropriate | B．conscious | C．arbitrary | D．controversial |
The Forbidden City attracts a _____ stream of visitors every day, especially during national holidays.
| A．constant | B．main | C．powerful | D．shallow |
Those poor and needy teenagers were excited to find a shop at the corner where they could buy ____ priced bikes.
| A．competitively | B．recently | C．reasonably | D．affordably |
A society cannot be successful if it throws tradition away, but it cannot be successful ____if we do something to stop progress.
| A．either | B．neither | C．too | D．also |
If we leave right away,____ we’ll arrive on time.
| A．hopefully | B．curiously | C．occasionally | D．gradually |