A person who has slept well will have a clear mind and work efficiently in the daytime ______ people with sleep disorders find it difficult to concentrate during the day.
They must have been enjoying themselves there,or they __________ so long.
—Did you enjoy your journey to the village? — __________.We had driven more than 3 hours before we found the right way.
He telephoned to inform me of your birthday.____________,I would have known nothing about it.
Actually,the London Olympic Park is built _____________ there used to be a poor area called East London.
I find that looking after children is a fun and challenging job ___________ you need to be patient and careful.