单项选择题
A. Study the case carefully beforehand. B. Stick to a set target. C. Appear friendly to the other party. D. Try to be flexible about their terms.
A. Because there is no direct dial service in that hotel. B. Because it is impossible for the guest to find the area codes for the country he intends to dial. C. Because it is cheaper than making directly dialed calls. D. Because there will be no misunderstanding about the charges.
A. AIDS virus has been found among them. B. they cannot get political asylum in the U. S. C. the U. S. government has refused to take them D. they don’t accept proper medical treatment