Mr Smith, of the speech, started to read a novel.
| A．tired; boring | B．tiring; bored | C．tired; bored | D．tiring; boring |
They did not sell a single car for a month and had to ________ some workers.
| A．lay out | B．lay up |
| C．lay off | D．lay down |
I don’t think I will need any money but I will bring some _______.
| A．at last | B．in case |
| C．once again | D．in time |
The disease failed to _______ to the new drugs the doctor used.
| A．respond | B．reflect |
| C．reply | D．reduce |
The experiment, though they had tried their best, ________ to be a failure.
| A．turned up | B．turned out |
| C．turned in | D．turned on |
Mr. White promised that he would tell me the result _______ he knew it.
| A．the instant | B．the moment when |
| C．while | D．before |