--- Why was Professor Zhang unhappy recently? --- Because the theory he insisted on _____ wrong. A proved B proving C being proved D was proved
Mid-Autumn Festival is special holiday for most Chinese when_______ whole family will get together.
. ----How did you find your visit to the Summer Palace yesterday? ----_____. I got separated from my 80-year-old grandparents
He could have helped us, but he ____ from coming in time by a traffic jam.
____ the rain falling so hard, it becomes more and more difficult to carry on the rescue work.
The class _____ 80 students is hard to manage.