D
考查强调句型。此处because of the heavy snowstorm in Europe是被强调的部分,原语序为:The flight had to be put off because of the heavy snowstorm in Europe.
D
考查强调句型。此处because of the heavy snowstorm in Europe是被强调的部分,原语序为:The flight had to be put off because of the heavy snowstorm in Europe.