Question

—Why did you stop writing?
— I _____ my writing paper.

A．have used up of

B．have been used up

C．ran out of

D．have run out

Answer 1

C

考查固定词组的用法。Use up sth="run" out of sth用完sth;或者 sth run out; A多了of; B多了been; D少了of.应该选择C。