______youve found, you must give it back to the owner.A．WhicheverB．WhatC．WhateverD．Which

If youve ever driven on a highway during a heavy rain, you know about the danger of______.

Thank you very much. Youve done me a great______.A．helpB．aidC．serviceD．assistance

______ it is you ve found, you must give it back to the owner of it.A．WhicheverB．WhatC．Wha

A new form. of energy must be found _____ oil supplies will soon be used up.

Suddenly _____ to give an answer I found myself at a loss.

_______ it is you’ve found you must give it back to the person it belongs to.