He cut off the electricity immediately he found the dangerous situation, thus ____ a fire accident.
| A．prevented | B．to prevent | C．would prevent | D．preventing |
The boss of the company had _________ his friend’s good advice, which led to the failure of his business.
| A．considered | B．suffered | C．ignored | D．discussed |
My son has changed so much that I could hardly __________ his voice on the phone.
| A．recognize | B．realize | C．hear | D．find |
He must be leaving our village because he is __________.
| A．making up | B．packing up | C．setting up | D．getting up |
The teacher asked us __________ so much noise.
| A．don’t make | B．not make | C．not making | D．not to make |
However, even on TV and the radio you will hear differences in the way ______ people speak.
| A．that | B．in which | C．/ | D．all of the above |