单项选择题
A．doubted B．gave proof to C．challenged D．agreed to
A．About half of Panama lies east of Miami. B．Panama is squeezed into the narrowest portion of Central America. C．Panama offers the lowest point in the North American continental divide. D．All of the above are tru
A. We’ll show you our photos when we are back. B. We are going with our teachers. C. We are going to Paris. D. When are you leaving E. How long are you going to stay there F. Have you been there before G. I want to go to London. H. See you later.