—Stay a bit longer , please. It’s been such ______ fun having you here . —Thank you , but I’ve got ______ early start tomorrow morning .
It was thought to be ______ adventure for him to walk across ______ Sahara Desert alone.
The teacher was worried about the boys in her class, for they spent ______ time playing computer games.
Luckily, there is a hospital ____ and they soon took the wounded man there.
My son ____ the examination, but he wasn't careful enough.
---- Must we clean the house now? -----No, you _______.