Letterboxes are mu
ch more _______ in the UK than in the US, where most people have a mailbox instead.
| A．common | B．ordinary | C．normal | D．usual |
Is it only when you fail _________ you will be aware of your mistakes?
| A．that | B．and | C．or | D．unless |
The young man was ________ of stealing money from the company in order to buy an iphone
| A．charged | B．blamed | C．scolded | D．accused |
Chinese GDP has been growing steadily year by year, _________ second in the world now.
| A．to rank | B．ranked | C．ranking | D．ranks |
You can go out, _________ you promise to be back before 11 o'clock.
| A．as far as | B．so far as | C．when | D．so long as |
Unless _________ by the police, you should keep silent over the accident.
| A．asked | B．ask | C．being asked | D．having asked |