To enjoy the scenery, Irene would rather spend long hours on the train _____ travel by air.
It was announced that only when the fire was under control ____ to return to their homes.
The next morning I’d just about given myself up for lost _______ I was spotted by a ship.
------ The authors of computer viruses are geniuses. ------ I agree. They can apply their wisdom to other net technology ________ human beings can benefit.
I’m lucky _______ the thing I enjoy doing more is ________ I’ve ended up doing.
The construction of the two new railway lines ________ by now.