单项选择题
With the introduction of（）technology, information flows faster than it ever did.
A.involved B.complicated C.sophisticated D.complex
单项选择题 I have worked on three（）Saturdays.
单项选择题 If your baby is losing weight, you should（）your doctor promptly.
单项选择题 One of his eyes was injured in an accident, but after a（）operation, he quickly recovered his sight.
