Ann is in hospital.—Oh, really I know. I go and visit her.

er becomes increasingly scarce in decades______, water shortage will become a hot issue all over the world

The time that he ________ in playing computer games each day is about two hours.

I wasn’t blaming anyone; I said errors like this could be avoided.

I think everyone can do something to make a difference to the Earth.-_______. If we work together, we can make the world a better place.