.
We must apply what we have learned to our daily work because in no case _______ from practice.
| A．should theory separate | B．should theory be separated |
| C．theory should separate | D．theory should be separated |
His success ____ the fact ____ he had been working hard.
| A．put in; which | B．led to; because | C．lay in; that | D．got in; that |
The secretary has _____to the related guests all the invitations to our company’s celebration.
| A．taken out | B．sent out | C．brought out | D．picked out |
It is fashionable to drive a car, but to drive a car is not nearly as difficult as it is imagined on condition that you ______ the specialized rules.
| A．give up | B．stick to | C．insist on | D．connect to |
The doctor was ______ immediately the little boy fell off a ladder and hurt himself.
| A．asked for | B．sent for | C．waited for | D．cared for |
So many people wanted to go to the game that another train had to be ______.
| A．carried on | B．got on | C．put on | D．turned on |