In the past half-century, average incomes _______ quickly in developed countries, yet happiness levels have remained almost the same.
Excuse me. II was blocking your way.
When you are at home,give a call to let me know yousafely.
The form cannot be signed by anyoneyourself.
After studying in a medical college for five years, Jane ______ her job as a doctor in the countryside.
The English spoken in the United States is only slightly different from ______ spoken in England.