It is not always easy for the public to see _____ use a new invention can be of to human life.
| A. whose |
B. what |
C. which |
D. that |
He has a part - time job and was paid___________.
| A．by the hour | B．by an hour | C．by hour | D．each hour |
The sunlight came in____________ the windows in the roof and lit up the whole room.
| A．through | B．across | C．by hour | D．each hour |
Keep up good state of mind even if you___________ fail plenty of times.
| A．must | B．will | C．can | D．should |
--The prison was ___________ fire last night.
--Someone must have set fire___________ it.
| A．on ; with | B．on ; to | C．over; with | D．should |
The __________ is just around the corner and you won't miss it.
| A．bicycle's shop | B．bicycle shop |
| C．bicycles shop | D．bicycles’ shop |