单项选择题
The winner of the Nobel Prize in physics dedicated the honor to his high school physics teacher,（）had been an inspiration during his early years.
A．who B．whom C．which D．that
单项选择题 We will put off the picnic until next month（）the weather may be better.
单项选择题 Let's discuss only such questions（）concerned everyone of us.
单项选择题 The two elements（）water is made are oxygen and hydrogen.
