Teacher Discussion Forums

Hi all,

I have a couple of questions about how some english words should be used in terms of possible objects. So I'm just wondering if the following sentences are acceptable or grammatical.

1) Water conducts with heat faster than with air.

2) He asked if he might conduct us to the ball.

3) Candidates will be examined on their written and oral language skills

4) Police are still investigating about how the accident happened.


Thanks for your help

CW

1) Water conducts heat

2) He asked if he might drive us

3) Correct

4) Police are still investigating how
or
Police are still conducting investigations into how