________ a beautiful palace ________ the foot of the hill.

Don’t worry. Your mother is coming to help you. —_______ she doesn’t come and I am here alone

of __________ is the basic requirement for people working in the serviceindustry, such as education and health care.

Is＿necessary to tell his father everything

ecial thanks go to thousands of volunteers,without ________tireless work, none of this would be possible．