__ of the students in the whole class could do this physics question.
__ of the students in the whole class could do this physics question.
I don't know ___about the new headmaster.
Jane has sent several letters, but ___of them have been answered.
___is difficult to walk on the moon.
We must help and understand each___.
At that time the train was slow and noisy. So___people liked taking trains.
It was___ fine day that they went to the park.
I've just bought five stamps. One is a German stamp, ___are American stamps.
Are there ___on the table?
There are two foreign friends in the park. One ___is from Japan, is from America.
