When ________ to tell the difference between British and American English, the linguist made a long and ________ speech.

He can not choose his own job, ________ can I.

With an appropriate relative pronoun My brother speaks English fluently, ________ I don ’t.

With an appropriate conjunctive Last month I bought a watch. It is cheap, ________ it goes quite well.

This car is very expensive. You have to pay half a million dollars ________ it.

I think his failure in the experiment resulted ________ his carelessness.