. We have finally finished it! When ______ the job if we had started it a week earlier?
| A．may we finish | B．could we finish |
| C．could we have finished | D．may we have finished |
This novel is set in the modern city, San Francisco, so once _______, it will be very popular.
| A．publishes | B．having published |
| C．published | D．publishing |
―What can I do for you?
―I'd like to buy a present for my son, ________ at a proper price but of great use.
| A．one | B．the one | C．which | D．that |
A long time ________ a person, which is really a truth.
| A．examines | B．checks | C．tests | D．experiments |
five minutes before the last bus left, we arrived at the station.
| A．There were; to go | B．With; to go | C．It was; left | D．It had; left |
________ is known to us is that time is limited and precious.
| A．What | B．That | C．It | D．As |