Can you imagine what difficulty people had this year ________ against the severe natural disasters?

Whenitcomestowhethercampusloveshouldbe______, there is no agreement among people.

(2012·江苏高考)Days later, my brother called to say he was all right, but ________ say where he was.

(2013·银川部分中学高三一模)Schools in China are required to  ________ at least one      “Sports Day” per academic year.

 The _______ of students in our class are from the country; only five are from cities.